---
title: "MDN HTTP Guide"
description: "Reference material explaining HTTP messages, headers, and behavior."
pagination: false
---

{/* Generated from content/. Edit the catalog, not this page. */}

<PurposeNote title="Good for">Understanding the protocol behind browser and API requests.</PurposeNote>

## What it does

Reference material explaining HTTP messages, headers, and behavior.

## When it fits

Understanding the protocol behind browser and API requests.

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</div>

## Source

[Project source for MDN HTTP Guide ↗](https://developer.mozilla.org/en-US/docs/Web/HTTP)

Editorial overview reviewed on October 24, 2026. Follow the source for current setup, compatibility, and licensing.

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