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# Visual Guides
Succinct graphical explanations to engineering topics.
Author: Kamran Ahmed
Keywords: roadmap,developer roadmaps,developer roadmap,frontend developer,frontend developer roadmap,frontend,frontend roadmap,backend,backend developer,backend developer roadmap,devops,devops roadmap,fullstack developer roadmap,guide to becoming a developer,sre roadmap,sre,operations roadmap,qa roadmap,android roadmap,android developer roadmap,react roadmap,react developer roadmap,dba roadmap,postgresql dba roadmap

Succinct graphical explanations to engineering topics.

NewSeptember 10, 2021

## Async and Defer Script Loading

Learn how to avoid render blocking JavaScript using async and defer scripts.

NewSeptember 5, 2021

## What are Web Vitals?

Learn what are the core web vitals and how to measure them.

SLIs, SLOs and SLAs
August 31, 2021
What is CI and CD?
July 9, 2021
SSO — Single Sign On
July 1, 2021
OAuth — Open Authorization
June 28, 2021
JWT Authentication
June 20, 2021
Token Based Authentication
June 2, 2021
Session Based Authentication
May 26, 2021
Basic Authentication
May 19, 2021
Character Encodings
May 14, 2021
Unfamiliar Codebase
May 4, 2021
Build it and they will come?
May 4, 2021
DHCP in One Picture
April 28, 2021
SSL vs TLS vs SSH
April 22, 2021
Asymptotic Notation
April 3, 2021
Big-O Notation
March 15, 2021
Random Numbers: Are they?
March 14, 2021
How does the internet work?
March 1, 2021
Scaling Databases
February 18, 2021
Building a BitTorrent Client
January 17, 2021
Levels of Seniority
December 3, 2020
Design Patterns for Humans
October 9, 2019
DNS in One Picture
December 4, 2018
HTTP Caching
November 29, 2018
Brief History of JavaScript
October 28, 2017
Proxy Servers
October 24, 2017

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