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Request

HTTP Cookie Header

Sends stored HTTP cookies from the client to the server. Contains name-value pairs that maintain session state across requests.

Purpose

Maintains session state, user preferences, and tracking information across multiple HTTP requests.

Cookie: name=value Cookie: name1=value1; name2=value2 Cookie: sessionId=abc123; theme=dark

Code Examples

See how to use the Cookie header in different tools and languages.

curl -H "Cookie: sessionId=abc123; theme=dark" https://api.example.com/dashboard
curl --cookie "sessionId=abc123" https://api.example.com/profile

Related Headers

Set-Cookie

Sends cookies from the server to the client. The client stores them and sends them back with subsequent requests via the Cookie header.

Authorization

Contains credentials to authenticate the client with the server. Commonly used for Bearer tokens, Basic auth, and API keys.

Cache-Control

Specifies caching directives for both requests and responses. Controls how and for how long content is cached by browsers and intermediate caches.

Test Your APIs

API Response Time Checker

Test your APIs and inspect response headers in real-time

HTTP Headers Reference

Complete reference of all HTTP request and response headers

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