HTTP Header Analyzer
See what information your browser sends to every website you visit. These headers can reveal your operating system, browser, language, and more.
Analyzing your browser headers...
What do these headers mean?
Every time you visit a website, your browser automatically sends HTTP headers that reveal information about you. The User-Agent tells sites your browser, OS, and device type. The Accept-Language reveals your language and often your country. Referer shows which page you came from. Combined, these headers help websites (and trackers) identify and profile you — even without cookies.