Beginner

HTTP & Web Networking: The Definitive Guide

A practical guide to how the web works behind the scenes. You’ll learn what happens when you open a website, including HTTP, TCP/IP, DNS, HTTPS, servers, proxies, caching, authentication, and debugging. This course is for web developers who use HTTP every day and want to understand it well enough to build and debug real systems with confidence.

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13 sections

43 chapters

6h 40m

June 15, 2026

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About this Course

A practical guide to how the web works behind the scenes. You’ll learn what happens when you open a website, including HTTP, TCP/IP, DNS, HTTPS, servers, proxies, caching, authentication, and debugging. This course is for web developers who use HTTP every day and want to understand it well enough to build and debug real systems with confidence.

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
Read, write, and reason about HTTP messages: methods, headers, status codes, and bodies
Explain the layers under HTTP: IP, TCP, ports, DNS, and TLS
Design and debug real HTTP systems involving proxies, caches, and load balancers

Who This Course Is For

Web developers who want a deep, practical understanding of HTTP and web networking.

Instructor

Tung Nguyen

Software Engineer at Autograb

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Course Contents

13 sections · 43 chapters

01 Welcome to the Course

02 Setting Up Your Toolkit