HTTP Headers Viewer

HTTP headers are metadata sent with every web request. They tell the server about your browser, preferred language, accepted content types, cookies, and more. Servers also send response headers back with caching rules, content type, and security policies.

The User-Agent header identifies your browser name, version, and operating system. Websites use it to serve compatible content. It can be used for fingerprinting, which is why some privacy-focused browsers send a generic User-Agent.

X-Forwarded-For is added by reverse proxies and load balancers to preserve the original client IP address. If you see this header, your request passed through a proxy before reaching our server. The value shows the chain of IP addresses from client to server.