00 — Overview
How the Web Works
Before you hack anything, you need to understand how the web works under the hood. HTTP, requests, responses, status codes, ports, cookies, sessions — all of it.
Beginner·45 min·10 tasks
// By the end of this module
→Explain the full HTTP request/response cycle
→Read and manipulate HTTP headers, methods, and status codes
→Understand how cookies, sessions, and the same-origin policy work
→Identify where user input touches the server and why that matters