Request

HTTP Referer Header

Contains the address of the previous page from which the current page was requested. Used for analytics, logging, and cache optimization.

Purpose

Tells the server which page or site referred the user, useful for analytics, access control, and cache optimization.

Referer: <url> Example: Referer: https://google.com/search?q=api+tools Example: Referer: https://apitiming.com/api-checker

Code Examples

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

curl -H "Referer: https://google.com" https://api.example.com/data
curl -e "https://apitiming.com" https://api.example.com/resource

Related Headers

Origin

Indicates where the request originates from. Used in CORS to determine if the server allows cross-origin requests.

Host

Specifies the domain name of the server and optionally the TCP port number. Mandatory in HTTP/1.1 requests.

X-Forwarded-For

Identifies the originating IP address of a client connecting through a proxy or load balancer. The standard Forwarded header is preferred in modern applications.

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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