diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
index 1a5ad7e69c..d94eb25d28 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
@@ -27,7 +27,7 @@ dashedName: use-css-animation-to-change-the-hover-state-of-a-button
   }
 </style>
 
-<img src="https://bit.ly/smallgooglelogo" alt="Google's Logo" />
+<img src="https://cdn.freecodecamp.org/curriculum/applied-visual-design/google-logo.png" alt="Google's Logo" />
 ```
 
 # --instructions--
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/add-borders-around-your-elements.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
index 9876da3309..fdd574b153 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
@@ -98,7 +98,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -160,7 +160,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
index 1918fff3e9..4ab6ca88a5 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
@@ -71,7 +71,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -134,7 +134,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/change-the-color-of-text.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/change-the-color-of-text.md
index cd28ca9a81..3fd8f34274 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/change-the-color-of-text.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/change-the-color-of-text.md
@@ -56,7 +56,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -92,7 +92,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
index 669b8156dd..51f463ec58 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
@@ -44,7 +44,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -89,7 +89,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
index 96d9ece642..56e9be770c 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
@@ -79,7 +79,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -146,7 +146,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/import-a-google-font.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/import-a-google-font.md
index 6eb05732f0..70b0ad8e02 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/import-a-google-font.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/import-a-google-font.md
@@ -93,7 +93,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -145,7 +145,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
index 626225ab5e..90bbe72dd8 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
@@ -65,7 +65,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -129,7 +129,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
index 4090b1388b..266beaec13 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
@@ -55,7 +55,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -102,7 +102,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/set-the-id-of-an-element.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
index b80e2438bc..e9b2ab1d96 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
@@ -73,7 +73,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -140,7 +140,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/size-your-images.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/size-your-images.md
index 5eca0b1c94..a0c193a796 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/size-your-images.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/size-your-images.md
@@ -31,7 +31,7 @@ CSS 的 `width` 屬性可以控制元素的寬度。 和設置文本字號一樣
 
 ```js
 assert(
-  $("img[src='https://bit.ly/fcc-relaxing-cat']").attr('class')
+  $("img[src='https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg']").attr('class')
     .trim().split(/\s+/g).includes('smaller-image')
 );
 ```
@@ -70,7 +70,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -126,7 +126,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
index fb22352e22..96c6d030b8 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
@@ -90,7 +90,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -142,7 +142,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
index a01967b9ce..3897352072 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
@@ -61,7 +61,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -103,7 +103,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
index 09c13163be..00ffe1ed3a 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
@@ -70,7 +70,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -112,7 +112,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
index 0baf81f11e..1971254263 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
@@ -96,7 +96,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -167,7 +167,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
index 70badd013d..55684a8db5 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
@@ -109,7 +109,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -180,7 +180,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
index 782abeeaa3..2e7c48241d 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
@@ -87,7 +87,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -128,7 +128,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
index 5cc013e5a8..42945e631d 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
@@ -64,7 +64,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -91,7 +91,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
index fc49c49a39..f7c5ded421 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
@@ -64,7 +64,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -89,7 +89,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
index 12d5ae0017..a097b5dc16 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
@@ -44,7 +44,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -77,7 +77,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
index 8ea98ca842..570d9fce6e 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
@@ -77,7 +77,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -91,7 +91,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <ul>
     <li>milk</li>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
index 58474048a2..c6cfd880a0 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
@@ -60,7 +60,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -85,7 +85,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
index e6fe3fd35b..54d6b2e281 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
@@ -76,7 +76,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -106,7 +106,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
index 222a429a2b..8c1e7e52ac 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
@@ -108,7 +108,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -136,7 +136,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
index 9c73aaa731..e529dbc938 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
@@ -42,7 +42,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -68,7 +68,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
index e41dfcf235..73f82d4f5b 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
@@ -119,7 +119,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -139,7 +139,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
index a3dd5427f7..9bdc0bda08 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
@@ -56,7 +56,7 @@ assert(
 
 
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -69,7 +69,7 @@ assert(
 <h2>CatPhotoApp</h2>
 <main>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <a href="https://www.freecatphotoapp.com">cat photos</a>
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
index 7f81171541..e12df23464 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
@@ -87,7 +87,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -107,7 +107,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="#footer">Jump to Bottom</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
index 387f9e6ae5..a0c254da7c 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
@@ -36,7 +36,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -50,7 +50,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="#" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
index 6b06192f58..215e492d54 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
@@ -141,7 +141,7 @@ assert(
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -155,7 +155,7 @@ assert(
 <main>
   <p>View more <a target="_blank" href="https://www.freecatphotoapp.com">cat photos</a></p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
index ed69c2f83c..dc95288e4e 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
@@ -59,7 +59,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -93,7 +93,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
   <div>
     <p>Things cats love:</p>
     <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
index 8ec3d15f11..bf97e8ad97 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
@@ -14,7 +14,7 @@ dashedName: turn-an-image-into-a-link
 如果我們要把圖片嵌套進 `a` 元素， 可以這樣寫：
 
 ```html
-<a href="#"><img src="https://www.bit.ly/fcc-running-cats" alt="Three kittens running towards the camera."></a>
+<a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="Three kittens running towards the camera."></a>
 ```
 
 如果把 `a` 的 `href` 屬性值設置爲 `#`，創建的是一個死鏈接（不跳轉到其他畫面）。
@@ -58,7 +58,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -72,7 +72,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
index 457e855e5d..bb3be465a5 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
@@ -36,7 +36,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -64,7 +64,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
index a48efac9ab..451ccfb5c0 100644
--- a/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
+++ b/curriculum/challenges/chinese-traditional/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
@@ -88,7 +88,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -121,7 +121,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.md b/curriculum/challenges/chinese-traditional/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.md
index 3a4e7bc62f..408956d1dd 100644
--- a/curriculum/challenges/chinese-traditional/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.md
+++ b/curriculum/challenges/chinese-traditional/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.md
@@ -26,7 +26,7 @@ var cat = {
 };
 ```
 
-在這個示例中，所有的屬性都被純屬爲字符串，比如 `name`、`legs` 和 `tails`。 然而，你也可以使用數字作爲屬性。 你甚至可以省略單字字符串屬性中的引號，如下所示：
+在此示例中，所有屬性都存儲爲字符串，例如 `name`、`legs` 和 `tails`。 然而，你也可以使用數字作爲屬性。 你甚至可以省略單字字符串屬性中的引號，如下所示：
 
 ```js
 var anotherObject = {
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
index 9e6df989c5..f95f855af0 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
@@ -76,10 +76,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
index 646558205d..a264ba0f4f 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
@@ -93,10 +93,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -155,10 +155,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
index 38314fdea2..94ff3458d7 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -144,9 +144,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
 
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
index 643d6885b7..19afa02195 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
@@ -67,9 +67,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
@@ -129,9 +129,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
index 0aef40904c..e36a1eeacc 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
@@ -93,9 +93,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
index a5de5b343a..cb3d4968a0 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
@@ -76,9 +76,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
   <p>Things cats love:</p>
   <ul>
@@ -143,9 +143,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
    <!-- ADD Bootstrap Styled Button -->
   <button class="btn btn-default">Like</button> 
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
index f94e83525b..5a189beb77 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
@@ -75,9 +75,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -137,10 +137,10 @@ assert(
       <h2 class="text-primary  text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-        <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+        <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
index 29a52784e2..b6c79d976d 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
@@ -91,9 +91,9 @@ assert($('.img-responsive').length > 1);
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -149,9 +149,9 @@ assert($('.img-responsive').length > 1);
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
index 351c192445..65ef81824d 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
@@ -78,10 +78,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -155,10 +155,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
index 4c067502e1..78ef148ec7 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
@@ -69,10 +69,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
index 4f83f7770b..9f25011fa5 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
@@ -68,10 +68,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -130,10 +130,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
index 4813aa094e..5c65e6b34a 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
@@ -71,10 +71,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -148,10 +148,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
index dc7e68e9f9..bde3bdc251 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
@@ -75,9 +75,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -138,9 +138,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-primary btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
index 608a183e4f..56cda62b60 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
@@ -86,9 +86,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -146,9 +146,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
index 5aac8dc4bc..e00f098935 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
@@ -84,7 +84,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
@@ -143,7 +143,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
index 62a8f44472..049589e671 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
@@ -91,9 +91,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
index ed7b1ea376..e2c3c6babc 100644
--- a/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
+++ b/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <p>Things cats love:</p>
@@ -145,9 +145,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md b/curriculum/challenges/chinese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
index dc5c7d6089..035aab8148 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
@@ -27,7 +27,7 @@ dashedName: use-css-animation-to-change-the-hover-state-of-a-button
   }
 </style>
 
-<img src="https://bit.ly/smallgooglelogo" alt="Google's Logo" />
+<img src="https://cdn.freecodecamp.org/curriculum/applied-visual-design/google-logo.png" alt="Google's Logo" />
 ```
 
 # --instructions--
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/add-borders-around-your-elements.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
index 592c76f73e..e4a29f423c 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
@@ -98,7 +98,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -160,7 +160,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
index 65ac7fab14..af0656837c 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
@@ -71,7 +71,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -134,7 +134,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/change-the-color-of-text.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/change-the-color-of-text.md
index e1a2b53d91..743f19c21a 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/change-the-color-of-text.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/change-the-color-of-text.md
@@ -56,7 +56,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -92,7 +92,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
index faedf5cd4d..62107bd750 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
@@ -44,7 +44,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -89,7 +89,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
index c02fe7057e..43b357f39f 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
@@ -79,7 +79,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -146,7 +146,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/import-a-google-font.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/import-a-google-font.md
index 6deadcd626..669aacdf88 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/import-a-google-font.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/import-a-google-font.md
@@ -93,7 +93,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -145,7 +145,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
index cd4fb6f43b..6bfb6b9c1f 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
@@ -65,7 +65,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -129,7 +129,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
index 45ea371f2b..aeac390abe 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
@@ -55,7 +55,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -102,7 +102,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/set-the-id-of-an-element.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
index 517b93d962..4ba9cf6fe1 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
@@ -73,7 +73,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -140,7 +140,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/size-your-images.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/size-your-images.md
index 5960fa0a0d..0bc629c719 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/size-your-images.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/size-your-images.md
@@ -31,7 +31,7 @@ CSS 的 `width` 属性可以控制元素的宽度。 和设置文本字号一样
 
 ```js
 assert(
-  $("img[src='https://bit.ly/fcc-relaxing-cat']").attr('class')
+  $("img[src='https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg']").attr('class')
     .trim().split(/\s+/g).includes('smaller-image')
 );
 ```
@@ -70,7 +70,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -126,7 +126,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
index af9be7e752..9f03018882 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
@@ -90,7 +90,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -142,7 +142,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
index 3d8fe8f5c6..3b90abcacc 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
@@ -61,7 +61,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -103,7 +103,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
index 52d0e35e11..0485bb0845 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
@@ -70,7 +70,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -112,7 +112,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
index d558f43052..8f2dba76b8 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
@@ -96,7 +96,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -167,7 +167,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
index d0c1fb6284..2f1f547593 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
@@ -109,7 +109,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -180,7 +180,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
index d7a3703c04..c6f307f3c5 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
@@ -87,7 +87,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -128,7 +128,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
index fc141892fc..d0133374d1 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
@@ -64,7 +64,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -91,7 +91,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
index b9d0536558..74570dd1a1 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
@@ -64,7 +64,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -89,7 +89,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
index 5d15026e9b..9363242b13 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
@@ -44,7 +44,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -77,7 +77,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
index 7d018825d1..307e6596db 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
@@ -77,7 +77,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -91,7 +91,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <ul>
     <li>milk</li>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
index 3b554d608b..85d88e9c15 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
@@ -60,7 +60,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -85,7 +85,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
index 9a72fd9fd4..f9c09b1d00 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
@@ -76,7 +76,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -106,7 +106,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
index e69a72f891..bae9297af7 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
@@ -108,7 +108,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -136,7 +136,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
index 379f71180b..314ee0d652 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
@@ -42,7 +42,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -68,7 +68,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
index 00478ca09a..df03a69c03 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
@@ -119,7 +119,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -139,7 +139,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
index 06924e4e93..b70ab09b8f 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
@@ -56,7 +56,7 @@ assert(
 
 
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -69,7 +69,7 @@ assert(
 <h2>CatPhotoApp</h2>
 <main>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <a href="https://www.freecatphotoapp.com">cat photos</a>
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
index 2cea968a62..26c1e7a473 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
@@ -87,7 +87,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -107,7 +107,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="#footer">Jump to Bottom</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
index 1f8ae11709..0bff3d13d0 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
@@ -36,7 +36,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -50,7 +50,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="#" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
index 9294363c15..04019500a2 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
@@ -141,7 +141,7 @@ assert(
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -155,7 +155,7 @@ assert(
 <main>
   <p>View more <a target="_blank" href="https://www.freecatphotoapp.com">cat photos</a></p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
index 01bdb478d5..8abebe5469 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
@@ -59,7 +59,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -93,7 +93,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
   <div>
     <p>Things cats love:</p>
     <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
index d9c92ddef2..461c45fa24 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
@@ -14,7 +14,7 @@ dashedName: turn-an-image-into-a-link
 如果我们要把图片嵌套进 `a` 元素， 可以这样写：
 
 ```html
-<a href="#"><img src="https://www.bit.ly/fcc-running-cats" alt="Three kittens running towards the camera."></a>
+<a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="Three kittens running towards the camera."></a>
 ```
 
 如果把 `a` 的 `href` 属性值设置为 `#`，创建的是一个死链接（不跳转到其他画面）。
@@ -58,7 +58,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -72,7 +72,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
index b13bf05edf..a8d17459de 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
@@ -36,7 +36,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -64,7 +64,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
index 0e23e23518..f11d713ec4 100644
--- a/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
+++ b/curriculum/challenges/chinese/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
@@ -88,7 +88,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -121,7 +121,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.md b/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.md
index 4ecd72ba0e..f918c4e796 100644
--- a/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.md
+++ b/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/build-javascript-objects.md
@@ -26,7 +26,7 @@ var cat = {
 };
 ```
 
-在这个示例中，所有的属性都被纯属为字符串，比如 `name`、`legs` 和 `tails`。 然而，你也可以使用数字作为属性。 你甚至可以省略单字字符串属性中的引号，如下所示：
+在此示例中，所有属性都存储为字符串，例如 `name`、`legs` 和 `tails`。 然而，你也可以使用数字作为属性。 你甚至可以省略单字字符串属性中的引号，如下所示：
 
 ```js
 var anotherObject = {
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
index cfbee850d6..1b69d45025 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
@@ -76,10 +76,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
index 7e672070f0..24e768a3d2 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
@@ -93,10 +93,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -155,10 +155,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
index fab808050a..cf5e9edbaf 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -144,9 +144,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
 
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
index e6bda1215f..1aae71dbba 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
@@ -67,9 +67,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
@@ -129,9 +129,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
index c272a583e3..39d4f09cd1 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
@@ -93,9 +93,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
index bc14a36cc5..50b59f02ef 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
@@ -76,9 +76,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
   <p>Things cats love:</p>
   <ul>
@@ -143,9 +143,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
    <!-- ADD Bootstrap Styled Button -->
   <button class="btn btn-default">Like</button> 
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
index 37381150cb..47d54e38b0 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
@@ -75,9 +75,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -137,10 +137,10 @@ assert(
       <h2 class="text-primary  text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-        <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+        <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
index cab4463b54..95c05d03f0 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
@@ -91,9 +91,9 @@ assert($('.img-responsive').length > 1);
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -149,9 +149,9 @@ assert($('.img-responsive').length > 1);
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
index 517053ab51..33eaf75122 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
@@ -78,10 +78,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -155,10 +155,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
index d832fed321..c4c9849aff 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
@@ -69,10 +69,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
index 9515a94221..63a8450282 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
@@ -68,10 +68,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -130,10 +130,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
index 30a474a0df..d4289f488d 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
@@ -71,10 +71,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -148,10 +148,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
index c463822a8c..43c11d6f70 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
@@ -75,9 +75,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -138,9 +138,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-primary btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
index 3e37dcecda..b2b237edfc 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
@@ -86,9 +86,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -146,9 +146,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
index 01545589ff..85ec618a43 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
@@ -84,7 +84,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
@@ -143,7 +143,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
index 2b59bf33ec..1c3d403eef 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
@@ -91,9 +91,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
index b46794a666..3dba3c4730 100644
--- a/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
+++ b/curriculum/challenges/chinese/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <p>Things cats love:</p>
@@ -145,9 +145,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md b/curriculum/challenges/espanol/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
index 40b0b75ad1..6502d29ba7 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
@@ -27,7 +27,7 @@ Aquí hay un ejemplo de como cambiar el ancho de una imagen al pasar sobre ella:
   }
 </style>
 
-<img src="https://bit.ly/smallgooglelogo" alt="Google's Logo" />
+<img src="https://cdn.freecodecamp.org/curriculum/applied-visual-design/google-logo.png" alt="Google's Logo" />
 ```
 
 # --instructions--
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/add-borders-around-your-elements.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
index 8b3af00b29..b3e7266d19 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
@@ -98,7 +98,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -160,7 +160,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
index 358863bec6..dacf2f1ef1 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
@@ -71,7 +71,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -134,7 +134,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/change-the-color-of-text.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/change-the-color-of-text.md
index 3b3885ed97..9f5ac347ca 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/change-the-color-of-text.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/change-the-color-of-text.md
@@ -56,7 +56,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -92,7 +92,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
index e81d4c1178..393ff4c070 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
@@ -44,7 +44,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -89,7 +89,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
index 028ea20ebc..07c0db1bd4 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
@@ -79,7 +79,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -146,7 +146,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/import-a-google-font.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/import-a-google-font.md
index b1fe140bf2..ce83455f02 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/import-a-google-font.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/import-a-google-font.md
@@ -93,7 +93,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -145,7 +145,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
index 29a27109cd..3170e41162 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
@@ -65,7 +65,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -129,7 +129,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
index 88feb30ea9..328e111370 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
@@ -55,7 +55,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -102,7 +102,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/set-the-id-of-an-element.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
index 138271fa9e..014bd84693 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
@@ -73,7 +73,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -140,7 +140,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/size-your-images.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/size-your-images.md
index 6e33480b28..07ec1f876e 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/size-your-images.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/size-your-images.md
@@ -31,7 +31,7 @@ Tu elemento `img` debe incluir la "class" `smaller-image`.
 
 ```js
 assert(
-  $("img[src='https://bit.ly/fcc-relaxing-cat']").attr('class')
+  $("img[src='https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg']").attr('class')
     .trim().split(/\s+/g).includes('smaller-image')
 );
 ```
@@ -70,7 +70,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -126,7 +126,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
index 32395cf83e..fdbe22484f 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
@@ -90,7 +90,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -142,7 +142,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
index 16b005c502..58064142c8 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
@@ -61,7 +61,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -103,7 +103,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
index 092ba5b8a9..f7e07101af 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
@@ -70,7 +70,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -112,7 +112,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
index bcdde64e5f..25f5f01bfb 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
@@ -96,7 +96,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -167,7 +167,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
index b719e1f9e5..4d810358d3 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
@@ -109,7 +109,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -180,7 +180,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
index 0c34976d0e..052ad334db 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
@@ -87,7 +87,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -128,7 +128,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
index 78f4cfe24f..d99461859c 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
@@ -64,7 +64,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -91,7 +91,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
index f949b47a35..70fbd6a936 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
@@ -64,7 +64,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -89,7 +89,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
index 8e6947e2eb..5242fcd7c8 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
@@ -44,7 +44,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -77,7 +77,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
index b13163fdd8..090c55704c 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
@@ -77,7 +77,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -91,7 +91,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <ul>
     <li>milk</li>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
index 4d7240b8bf..528fb9397b 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
@@ -60,7 +60,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -85,7 +85,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
index 36fa7de48f..7ede0b655d 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
@@ -76,7 +76,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -106,7 +106,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
index 44ae710a53..4634dc4445 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
@@ -108,7 +108,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -136,7 +136,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
index 11d290024d..6d310c21d4 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
@@ -42,7 +42,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -68,7 +68,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
index 25c3a57ad3..6d73c52493 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
@@ -119,7 +119,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -139,7 +139,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
index 1d6f6526f7..a3db12689d 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
@@ -56,7 +56,7 @@ assert(
 
 
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -69,7 +69,7 @@ assert(
 <h2>CatPhotoApp</h2>
 <main>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <a href="https://www.freecatphotoapp.com">cat photos</a>
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
index b6f1726f86..98330b3543 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
@@ -87,7 +87,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -107,7 +107,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="#footer">Jump to Bottom</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
index 7ce24bc4a2..b95c0dd367 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
@@ -36,7 +36,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -50,7 +50,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="#" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
index ef198ed50b..c0e7366b3a 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
@@ -141,7 +141,7 @@ assert(
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -155,7 +155,7 @@ assert(
 <main>
   <p>View more <a target="_blank" href="https://www.freecatphotoapp.com">cat photos</a></p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
index 25ab7bc137..de65fa24f3 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
@@ -59,7 +59,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -93,7 +93,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
   <div>
     <p>Things cats love:</p>
     <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
index 38436ea2db..f080cc27ab 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
@@ -14,7 +14,7 @@ Puedes convertir elementos en enlaces, anidándolos dentro de un elemento `a`.
 Anida tu imagen dentro de un elemento `a`. A continuación, te presentamos un ejemplo:
 
 ```html
-<a href="#"><img src="https://www.bit.ly/fcc-running-cats" alt="Three kittens running towards the camera."></a>
+<a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="Three kittens running towards the camera."></a>
 ```
 
 Recuerda usar `#` como propiedad `href` de tu elemento `a` para convertirlo en un enlace muerto.
@@ -58,7 +58,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -72,7 +72,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
index 349c682940..3cd9deb056 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
@@ -36,7 +36,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -64,7 +64,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
index 56ca87537d..23464aee59 100644
--- a/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
+++ b/curriculum/challenges/espanol/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
@@ -88,7 +88,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -121,7 +121,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
index b1e6655499..83f49f7c96 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
@@ -76,10 +76,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
index 428df553bd..190362386f 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
@@ -93,10 +93,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -155,10 +155,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
index db27726a3a..5f876f0862 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -144,9 +144,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
 
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
index 50efd9da38..0d1767ff61 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
@@ -67,9 +67,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
@@ -129,9 +129,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
index 6a7338ed26..6e4b0a46c3 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
@@ -93,9 +93,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
index f1bc408acd..35c1cf1246 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
@@ -76,9 +76,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
   <p>Things cats love:</p>
   <ul>
@@ -143,9 +143,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
    <!-- ADD Bootstrap Styled Button -->
   <button class="btn btn-default">Like</button> 
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
index c0c5dce1ff..0739d75b95 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
@@ -75,9 +75,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -137,10 +137,10 @@ assert(
       <h2 class="text-primary  text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-        <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+        <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
index 6561a5cc14..13f5549061 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
@@ -91,9 +91,9 @@ assert($('.img-responsive').length > 1);
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -149,9 +149,9 @@ assert($('.img-responsive').length > 1);
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
index 00644abcc5..e6411bad02 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
@@ -78,10 +78,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -155,10 +155,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
index ffe1619565..3f5a7c0e47 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
@@ -69,10 +69,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
index ef0c9c7487..7c4d07d073 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
@@ -68,10 +68,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -130,10 +130,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
index 4f16bdc258..6a53c68d88 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
@@ -71,10 +71,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -148,10 +148,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
index df785115d0..dd2180863c 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
@@ -75,9 +75,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -138,9 +138,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-primary btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
index 5fef5df621..3eb2924c65 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
@@ -86,9 +86,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -146,9 +146,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
index f96051ad89..67b783041d 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
@@ -84,7 +84,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
@@ -143,7 +143,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
index 9c057369e9..1fb0aae43d 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
@@ -91,9 +91,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
index 32cfd038df..3b68ddd725 100644
--- a/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
+++ b/curriculum/challenges/espanol/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <p>Things cats love:</p>
@@ -145,9 +145,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md b/curriculum/challenges/italian/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
index 673974cf71..f887b1178d 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
@@ -27,7 +27,7 @@ Ecco un esempio di cambiamento della larghezza di un'immagine quando ci si passa
   }
 </style>
 
-<img src="https://bit.ly/smallgooglelogo" alt="Google's Logo" />
+<img src="https://cdn.freecodecamp.org/curriculum/applied-visual-design/google-logo.png" alt="Google's Logo" />
 ```
 
 # --instructions--
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/add-borders-around-your-elements.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
index f6a23dc401..5ab74c8e37 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
@@ -98,7 +98,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -160,7 +160,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
index bc50cc15a0..988d37cea6 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
@@ -71,7 +71,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -134,7 +134,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/change-the-color-of-text.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/change-the-color-of-text.md
index a5c8744cf5..79b64730f7 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/change-the-color-of-text.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/change-the-color-of-text.md
@@ -56,7 +56,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -92,7 +92,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
index df02b8ce8a..982e4347cc 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
@@ -44,7 +44,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -89,7 +89,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
index a1a8efe4d4..9aec582e52 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
@@ -79,7 +79,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -146,7 +146,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/import-a-google-font.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/import-a-google-font.md
index ae281747f7..ecc7c165bb 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/import-a-google-font.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/import-a-google-font.md
@@ -93,7 +93,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -145,7 +145,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
index 50c4867af8..b9794b8025 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
@@ -65,7 +65,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -129,7 +129,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
index 379a7a3b87..22ab1a5200 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
@@ -55,7 +55,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -102,7 +102,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/set-the-id-of-an-element.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
index e7e3dcd4e9..c07b6386e8 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
@@ -73,7 +73,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -140,7 +140,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/size-your-images.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/size-your-images.md
index 5fa47c79bc..b37d12b62a 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/size-your-images.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/size-your-images.md
@@ -31,7 +31,7 @@ Il tuo elemento `img` dovrebbe avere la classe `smaller-image`.
 
 ```js
 assert(
-  $("img[src='https://bit.ly/fcc-relaxing-cat']").attr('class')
+  $("img[src='https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg']").attr('class')
     .trim().split(/\s+/g).includes('smaller-image')
 );
 ```
@@ -70,7 +70,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -126,7 +126,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
index 32bbc806ab..d54221e3cb 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
@@ -90,7 +90,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -142,7 +142,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
index 7823922a40..3cfb0dfe4d 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
@@ -61,7 +61,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -103,7 +103,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
index 301f5e016d..c957d61ee9 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
@@ -70,7 +70,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -112,7 +112,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
index 6cecc14617..931b147074 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
@@ -96,7 +96,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -167,7 +167,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
index a7cee2b859..9ea0e1b6a7 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
@@ -109,7 +109,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -180,7 +180,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md b/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
index a6180c7fde..4fb90fc9d0 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
@@ -87,7 +87,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -128,7 +128,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
index 312239875f..3e373543ae 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
@@ -64,7 +64,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -91,7 +91,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
index b3914f22c1..9316c3c42f 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
@@ -64,7 +64,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -89,7 +89,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
index af2c5b1693..3d98d33115 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
@@ -44,7 +44,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -77,7 +77,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
index 92a607b765..1885af44ba 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
@@ -77,7 +77,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -91,7 +91,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <ul>
     <li>milk</li>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
index 73115a8af1..208233255e 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
@@ -60,7 +60,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -85,7 +85,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
index 2c236f550c..795d02c00d 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
@@ -76,7 +76,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -106,7 +106,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
index 3b58a63146..8fc7b27815 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
@@ -108,7 +108,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -136,7 +136,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
index 2eb55fe7f1..e07ff382cf 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
@@ -42,7 +42,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -68,7 +68,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
index f6a2abeda7..fb616d9ef2 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
@@ -119,7 +119,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -139,7 +139,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
index b90f048a62..9d1b0a9d78 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
@@ -56,7 +56,7 @@ assert(
 
 
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -69,7 +69,7 @@ assert(
 <h2>CatPhotoApp</h2>
 <main>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <a href="https://www.freecatphotoapp.com">cat photos</a>
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
index 02b6ca8592..dfbacfedcb 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
@@ -87,7 +87,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -107,7 +107,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="#footer">Jump to Bottom</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
index d929a18395..a1ebc18962 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
@@ -36,7 +36,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -50,7 +50,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="#" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
index 381aa1127d..4805cd11f4 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
@@ -141,7 +141,7 @@ assert(
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -155,7 +155,7 @@ assert(
 <main>
   <p>View more <a target="_blank" href="https://www.freecatphotoapp.com">cat photos</a></p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
index def793ccaf..f004e2efc7 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
@@ -59,7 +59,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -93,7 +93,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
   <div>
     <p>Things cats love:</p>
     <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
index 2541af515f..f83f529e98 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
@@ -14,7 +14,7 @@ dashedName: turn-an-image-into-a-link
 Metti la tua immagine all'interno di un elemento `a`. Ecco un esempio:
 
 ```html
-<a href="#"><img src="https://www.bit.ly/fcc-running-cats" alt="Three kittens running towards the camera."></a>
+<a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="Three kittens running towards the camera."></a>
 ```
 
 Ricordati di usare `#` come proprietà `href` dei tuoi elementi `a` per trasformarli in link vuoti.
@@ -58,7 +58,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -72,7 +72,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
index d7c0df5bd3..d3d1d45d63 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
@@ -36,7 +36,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -64,7 +64,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
index 47725b8308..ed173e48d4 100644
--- a/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
+++ b/curriculum/challenges/italian/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
@@ -88,7 +88,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -121,7 +121,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
index d859bbaf17..7a2b16b532 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
@@ -76,10 +76,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
index 3ee0e88c40..3da5d874a1 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
@@ -93,10 +93,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -155,10 +155,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
index e68989593f..1c6e2ba4ec 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -144,9 +144,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
 
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
index b37f9c53f8..b7683a88a9 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
@@ -67,9 +67,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
@@ -129,9 +129,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
index 73125cd019..bb76ba8903 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
@@ -93,9 +93,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
index 529d85f12b..0cd4755d9a 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
@@ -76,9 +76,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
   <p>Things cats love:</p>
   <ul>
@@ -143,9 +143,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
    <!-- ADD Bootstrap Styled Button -->
   <button class="btn btn-default">Like</button> 
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
index 37d1443a24..eb614665dd 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
@@ -75,9 +75,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -137,10 +137,10 @@ assert(
       <h2 class="text-primary  text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-        <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+        <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
index 24767cff32..25531afb7c 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
@@ -91,9 +91,9 @@ assert($('.img-responsive').length > 1);
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -149,9 +149,9 @@ assert($('.img-responsive').length > 1);
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
index cff5859656..86e4476491 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
@@ -78,10 +78,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -155,10 +155,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
index 02e6b083b9..6c1738d6e7 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
@@ -69,10 +69,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
index 902f81c93e..9ef554d35e 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
@@ -68,10 +68,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -130,10 +130,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
index 049a5df609..abb96e00ca 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
@@ -71,10 +71,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -148,10 +148,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
index 62a707ab6d..5657fc2fdc 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
@@ -75,9 +75,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -138,9 +138,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-primary btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
index 640bdc6d0f..36c35698c4 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
@@ -86,9 +86,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -146,9 +146,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
index fa38259138..fc1e509bdf 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
@@ -84,7 +84,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
@@ -143,7 +143,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
index 9c0e41704c..3dbb273163 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
@@ -91,9 +91,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
index a4fc0653af..57679b6324 100644
--- a/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
+++ b/curriculum/challenges/italian/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <p>Things cats love:</p>
@@ -145,9 +145,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md b/curriculum/challenges/portuguese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
index dbf0a12c2e..a18ca84a44 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
@@ -27,7 +27,7 @@ Aqui está um exemplo de alteração da largura de uma imagem ao passar o cursor
   }
 </style>
 
-<img src="https://bit.ly/smallgooglelogo" alt="Google's Logo" />
+<img src="https://cdn.freecodecamp.org/curriculum/applied-visual-design/google-logo.png" alt="Google's Logo" />
 ```
 
 # --instructions--
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/add-borders-around-your-elements.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
index b87136da0e..1807d94179 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
@@ -98,7 +98,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -160,7 +160,7 @@ assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
index 6569e9abef..265180a754 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/add-rounded-corners-with-border-radius.md
@@ -71,7 +71,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -134,7 +134,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/change-the-color-of-text.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/change-the-color-of-text.md
index a8b9e587e6..91db0bf812 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/change-the-color-of-text.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/change-the-color-of-text.md
@@ -56,7 +56,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -92,7 +92,7 @@ assert($('h2').attr('style') && $('h2').attr('style').endsWith(';'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
index 750ce47d18..9333a00ca3 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.md
@@ -44,7 +44,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -89,7 +89,7 @@ assert(code.match(/p\s*{\s*font-size\s*:\s*16\s*px\s*;\s*}/i));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
index 0a5431e0e5..16e9a312cd 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.md
@@ -79,7 +79,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -146,7 +146,7 @@ assert(code.match(/\.silver-background\s*{\s*background-color\s*:\s*silver\s*;?\
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/import-a-google-font.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/import-a-google-font.md
index 214a1e1d49..28ea3a0b6b 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/import-a-google-font.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/import-a-google-font.md
@@ -93,7 +93,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -145,7 +145,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
index c7082e3266..b9b953de0c 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.md
@@ -65,7 +65,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -129,7 +129,7 @@ assert(code.match(/50%/g));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
index 7a829a24b7..ea807f3e3b 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/set-the-font-family-of-an-element.md
@@ -55,7 +55,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -102,7 +102,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/set-the-id-of-an-element.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
index 17d31aaf86..2a35291862 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/set-the-id-of-an-element.md
@@ -73,7 +73,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -140,7 +140,7 @@ assert($('form').attr('id') === 'cat-photo-form');
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/size-your-images.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/size-your-images.md
index fe5d2f438b..4827744983 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/size-your-images.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/size-your-images.md
@@ -31,7 +31,7 @@ O elemento `img` deve ter a classe `smaller-image`.
 
 ```js
 assert(
-  $("img[src='https://bit.ly/fcc-relaxing-cat']").attr('class')
+  $("img[src='https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg']").attr('class')
     .trim().split(/\s+/g).includes('smaller-image')
 );
 ```
@@ -70,7 +70,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -126,7 +126,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
index 3916085995..e0e1e857a9 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/specify-how-fonts-should-degrade.md
@@ -90,7 +90,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -142,7 +142,7 @@ assert(new RegExp('[^fc]-->', 'gi').test(code));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
index d17195703e..a827360972 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/style-multiple-elements-with-a-css-class.md
@@ -61,7 +61,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -103,7 +103,7 @@ assert($('p:eq(0)').hasClass('red-text'));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
index 51be9a36d8..3afdc74d0b 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-a-css-class-to-style-an-element.md
@@ -70,7 +70,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -112,7 +112,7 @@ assert($('h2').attr('style') === undefined);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
index fd794be3cc..97f65ff444 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-an-id-attribute-to-style-an-element.md
@@ -96,7 +96,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -167,7 +167,7 @@ assert(!code.match(/<form.*style.*>/gi) && !code.match(/<form.*class.*>/gi));
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
index 8bea9ec1b4..cb3d8c0889 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-attribute-selectors-to-style-elements.md
@@ -109,7 +109,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
@@ -180,7 +180,7 @@ assert(
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div class="silver-background">
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
index 207e850cbb..c9f9d6a3a6 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-css/use-css-selectors-to-style-elements.md
@@ -87,7 +87,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
@@ -128,7 +128,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <div>
     <p>Things cats love:</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
index 74ff25ef75..f2e585940e 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/add-a-submit-button-to-a-form.md
@@ -64,7 +64,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -91,7 +91,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
index faebc9cad1..84819d27e0 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/add-placeholder-text-to-a-text-field.md
@@ -64,7 +64,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -89,7 +89,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
index cb7a690c7c..269a862a07 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/check-radio-buttons-and-checkboxes-by-default.md
@@ -44,7 +44,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -77,7 +77,7 @@ assert($('input[type="checkbox"]').prop('checked'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
index f68f76c1dc..4a65d89ce5 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-bulleted-unordered-list.md
@@ -77,7 +77,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -91,7 +91,7 @@ assert($('ul li').filter((_, item) => !$(item).text().trim()).length === 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <ul>
     <li>milk</li>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
index 743d3ffaed..c5a6c1f7e6 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-form-element.md
@@ -60,7 +60,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -85,7 +85,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
index 22317b5043..f28f4fefc6 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-checkboxes.md
@@ -76,7 +76,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -106,7 +106,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
index fce6bc8e20..03567075a1 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-set-of-radio-buttons.md
@@ -108,7 +108,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -136,7 +136,7 @@ assert($('label').parent().get(0).tagName.match('FORM'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
index 7009e90b09..ad30ac69be 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-a-text-field.md
@@ -42,7 +42,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -68,7 +68,7 @@ assert($('input[type=text]').length > 0);
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
index 20177493db..972ee20741 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/create-an-ordered-list.md
@@ -119,7 +119,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -139,7 +139,7 @@ $('ol li').each((i, val) =>
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
index 832d33e89d..2b5b647330 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/link-to-external-pages-with-anchor-elements.md
@@ -56,7 +56,7 @@ assert(
 
 
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -69,7 +69,7 @@ assert(
 <h2>CatPhotoApp</h2>
 <main>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <a href="https://www.freecatphotoapp.com">cat photos</a>
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
index 0a474c93d8..ed9593d27d 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/link-to-internal-sections-of-a-page-with-anchor-elements.md
@@ -87,7 +87,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -107,7 +107,7 @@ assert($('footer').eq(0).attr('id') == 'footer');
 
   <a href="#footer">Jump to Bottom</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched. Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
index b6bf0710c7..eac1cb4471 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/make-dead-links-using-the-hash-symbol.md
@@ -36,7 +36,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -50,7 +50,7 @@ assert($('a').attr('href') === '#');
 <main>
   <p>Click here to view more <a href="#" target="_blank">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
index 51b15d9949..72ee6d51f0 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/nest-an-anchor-element-within-a-paragraph.md
@@ -141,7 +141,7 @@ assert(
 
   <a href="https://www.freecatphotoapp.com" target="_blank">cat photos</a>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -155,7 +155,7 @@ assert(
 <main>
   <p>View more <a target="_blank" href="https://www.freecatphotoapp.com">cat photos</a></p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
index b7503b7fb8..8dcdc66ef4 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/nest-many-elements-within-a-single-div-element.md
@@ -59,7 +59,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -93,7 +93,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
   <div>
     <p>Things cats love:</p>
     <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
index 4a2238fbf1..19ea76c5d8 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/turn-an-image-into-a-link.md
@@ -14,7 +14,7 @@ Você pode transformar elementos em links colocando-os dentro de um elemento `a`
 Coloque a imagem dentro de um elemento `a`. Exemplo:
 
 ```html
-<a href="#"><img src="https://www.bit.ly/fcc-running-cats" alt="Three kittens running towards the camera."></a>
+<a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="Three kittens running towards the camera."></a>
 ```
 
 Lembre-se de usar `#` como valor da propriedade `href` no elemento `a` para transformá-lo em um link inativo.
@@ -58,7 +58,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
@@ -72,7 +72,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
   <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
index 7ffc5ba36a..89a546c4e8 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/use-html5-to-require-a-field.md
@@ -36,7 +36,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -64,7 +64,7 @@ assert($('input').prop('required'));
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
index 6db6775b09..5aeadb8c13 100644
--- a/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
+++ b/curriculum/challenges/portuguese/01-responsive-web-design/basic-html-and-html5/use-the-value-attribute-with-radio-buttons-and-checkboxes.md
@@ -88,7 +88,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
@@ -121,7 +121,7 @@ assert(
 <main>
   <p>Click here to view more <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img src="https://www.bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
index b0783e3b58..71aee4910b 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-all-of-our-buttons.md
@@ -76,10 +76,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
index 247fb3245a..995034adbe 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/add-font-awesome-icons-to-our-buttons.md
@@ -93,10 +93,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -155,10 +155,10 @@ assert(code.match(/<\/i>|<\/span>/g));
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fas fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
index b5edca7543..02c48d0082 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/call-out-optional-actions-with-btn-info.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -144,9 +144,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
 
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
index e896c487d0..83941dff4e 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/center-text-with-bootstrap.md
@@ -67,9 +67,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
@@ -129,9 +129,9 @@ assert($('h2').hasClass('red-text'));
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <p>Things cats love:</p>
   <ul>
     <li>cat nip</li>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
index 8a94becf34..64746da223 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-block-element-bootstrap-button.md
@@ -93,9 +93,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-default">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
index f1f2f45b0b..fe9dce5793 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-bootstrap-button.md
@@ -76,9 +76,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
   <p>Things cats love:</p>
   <ul>
@@ -143,9 +143,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
 
    <!-- ADD Bootstrap Styled Button -->
   <button class="btn btn-default">Like</button> 
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
index 8edd06321f..61a7636d83 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/create-a-custom-heading.md
@@ -75,9 +75,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -137,10 +137,10 @@ assert(
       <h2 class="text-primary  text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-        <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+        <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
index 7a12bc36d5..3b722c5092 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/ditch-custom-css-for-bootstrap.md
@@ -91,9 +91,9 @@ assert($('.img-responsive').length > 1);
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -149,9 +149,9 @@ assert($('.img-responsive').length > 1);
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
index 7c7ed32a50..06d03eece8 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md
@@ -78,10 +78,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -155,10 +155,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
index d1ce9b4c39..85c193898e 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/responsively-style-checkboxes.md
@@ -69,10 +69,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -138,10 +138,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
index 710ad0faec..03cf96db8b 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/responsively-style-radio-buttons.md
@@ -68,10 +68,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -130,10 +130,10 @@ assert(
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
index b8a273499b..24a4e10e18 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/style-text-inputs-as-form-controls.md
@@ -71,10 +71,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
@@ -148,10 +148,10 @@ assert(code.match(/<\/i>/g) && code.match(/<\/i/g).length > 3);
       <h2 class="text-primary text-center">CatPhotoApp</h2>
     </div>
     <div class="col-xs-4">
-      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+      <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
     </div>
   </div>
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
index fd66e91540..be3db451a4 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/taste-the-bootstrap-button-color-rainbow.md
@@ -75,9 +75,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-default btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
@@ -138,9 +138,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-primary btn-block">Like</button>
   <p>Things cats love:</p>
   <ul>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
index 95a8109404..a1d17873b1 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-a-span-to-target-inline-elements.md
@@ -86,9 +86,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
@@ -146,9 +146,9 @@ assert(
 <div class="container-fluid">
   <h2 class="text-primary text-center">CatPhotoApp</h2>
 
-  <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
index 024ccc7f53..6ef0c7b265 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-responsive-design-with-bootstrap-fluid-containers.md
@@ -84,7 +84,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
@@ -143,7 +143,7 @@ assert($('.container-fluid').children().length >= 8 && !$('.container-fluid').ha
 
 <p>Click here for <a href="#">cat photos</a>.</p>
 
-<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
 <p>Things cats love:</p>
 <ul>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
index e90ec45852..4554c474f3 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/use-the-bootstrap-grid-to-put-elements-side-by-side.md
@@ -91,9 +91,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
@@ -156,9 +156,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <div class="row">
     <div class="col-xs-4">
       <button class="btn btn-block btn-primary">Like</button>
diff --git a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
index 9e8d44b7a8..918ec0a43b 100644
--- a/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
+++ b/curriculum/challenges/portuguese/03-front-end-development-libraries/bootstrap/warn-your-users-of-a-dangerous-action-with-btn-danger.md
@@ -81,9 +81,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <p>Things cats love:</p>
@@ -145,9 +145,9 @@ assert(
 
   <p>Click here for <a href="#">cat photos</a>.</p>
 
-  <a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
+  <a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
 
-  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
+  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
   <button class="btn btn-block btn-primary">Like</button>
   <button class="btn btn-block btn-info">Info</button>
   <button class="btn btn-block btn-danger">Delete</button>
diff --git a/curriculum/challenges/portuguese/10-coding-interview-prep/data-structures/create-an-es6-javascript-map.md b/curriculum/challenges/portuguese/10-coding-interview-prep/data-structures/create-an-es6-javascript-map.md
index 08b5d379ce..2e8d682bdb 100644
--- a/curriculum/challenges/portuguese/10-coding-interview-prep/data-structures/create-an-es6-javascript-map.md
+++ b/curriculum/challenges/portuguese/10-coding-interview-prep/data-structures/create-an-es6-javascript-map.md
@@ -39,5 +39,7 @@ assert(myMap.get('freeCodeCamp') === 'Awesome!');
 # --solutions--
 
 ```js
-// solution required
+const myMap = new Map();
+
+myMap.set("freeCodeCamp", "Awesome!");
 ```