Networking

Learn REST API design with Express.js. Build a users API with GET, POST, PUT, DELETE routes, correct status codes, and clean route conventions.

Install Node.js, use the REPL, run your first script, and build a working HTTP server from scratch — no frameworks, no dependencies.

Discover what happens behind the scenes when you load a webpage, from typing a URL to rendering pixels on your screen

Discover the key differences between TCP and UDP and learn how they relate to HTTP in this informative guide

Discover how TCP ensures reliable internet communication with its 3-way handshake process and safeguards against data loss and corruption

Beginner's guide to cURL: Learn how to send server requests directly from your terminal without a browser. Perfect for API testing and automation!

Beginner's guide to essential network devices supporting internet infrastructure; ideal for tech or web development newcomers

Learn how DNS resolution converts domain names to IP addresses, step by step, with explanations of root, TLD, and authoritative name servers

Learn about DNS record types and how they direct web traffic, emails, and domain control through simple examples and explanations