HTTP Headers
What Are My HTTP Headers?
See the exact HTTP request headers your browser sends to every website — User-Agent, languages, encodings, client hints and privacy signals. Nothing is stored.
Reading your request headers…
About HTTP headers
Every request carries a fingerprint
The headers below travel with each page you load — together they help identify you.
Identity
User-Agent and client hints reveal your browser, version, OS and device type.
Language & locale
Accept-Language exposes your preferred languages — often enough to guess your region.
Privacy signals
DNT and GPC tell sites your tracking preference. We redact secrets like cookies.
Frequently asked questions