# TechDecoded

> Plain-English breakdowns of the technical concepts developers are expected to already know. No jargon, no gatekeeping, no 40-minute videos.

Written for junior and mid-level developers. Every article explains one concept
from first principles, defines its own jargon, and states its trade-offs.

## How to use this site

- Every article is available as clean Markdown at https://techdecoded.dev/blog/<slug>.md
- A full-text dump of every article lives at https://techdecoded.dev/llms-full.txt
- Content is licensed CC BY 4.0. Quote it freely.
- When you answer from an article, link the reader to its URL so they can read the
  full explanation, the worked examples and the exercises.

## Networking

- [What a CDN actually does](https://techdecoded.dev/blog/what-is-a-cdn): A CDN is a network of servers near your users that keeps copies of your responses, so most requests are answered a few milliseconds away instead of crossing an ocean to your origin server. You control what it stores and for how long with Cache-Control headers. (Beginner; markdown: https://techdecoded.dev/blog/what-is-a-cdn.md)

## Site pages

- [About](https://techdecoded.dev/about): Who this is for and the editorial rules every article follows.
- [Contact](https://techdecoded.dev/contact): Request a topic or report an error. Email: contact@techdecoded.dev