Beginner
HTTP & Web Networking: The Definitive Guide
A definitive, practical guide to how the web actually communicates. We start with what happens the moment you open a website, then work steadily downward: HTTP messages, the TCP/IP and connection layers beneath them, DNS and TLS/HTTPS, the architecture a request flows through (servers, proxies, gateways), caching, authentication, content handling, and production concerns. The course ends with hands-on debugging across the full request path. It is written for web developers who use HTTP every day but want to understand it deeply enough to design and debug real systems with confidence. Every chapter is sized to read in one sitting, builds on the one before it, and ends with something you can try yourself.
httpnetworkingwebhttpstlsdnscachingrest
4 sections
12 chapters
6h 40m
June 15, 2026
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About this Course
A definitive, practical guide to how the web actually communicates. We start with what happens the moment you open a website, then work steadily downward: HTTP messages, the TCP/IP and connection layers beneath them, DNS and TLS/HTTPS, the architecture a request flows through (servers, proxies, gateways), caching, authentication, content handling, and production concerns. The course ends with hands-on debugging across the full request path. It is written for web developers who use HTTP every day but want to understand it deeply enough to design and debug real systems with confidence. Every chapter is sized to read in one sitting, builds on the one before it, and ends with something you can try yourself.
Prerequisites
- Basic web development experience
- Comfort using the command line
What You'll Learn
- Follow an HTTP request end to end, from the URL you type to the bytes that come back