HTTP Headers, Status Codes & Parameters Explained

Understand the extra information carried by HTTP requests and responses. Learn common headers, status codes, query parameters, URL encoding, request bodies and how to inspect them in Chrome Developer Tools.

SCENE 01

Introduction

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Let's Understand

ANIMATED HTTP DIAGRAM

Key Learning Points

Practice with Chrome Developer Tools

Open thepentestlab.in, press F12, select Network and reload the page.

Click a document request and inspect Request Headers, Response Headers and Status Code.

For requests containing data, inspect the Payload tab for query parameters or request bodies.

Next episode: HTTP/1.1 vs HTTP/2 vs HTTP/3 Explained.