A request headers is an HTTP header that the client sends to the server.
HTTP request headers list | Browser Headers Viewer
| Type | Standard |
| Subype | HTTP |
| Related headers | Accept, Accept-Encoding, Accept-Charset, Authorization, Connection, Content-Length, Content-Type, Cookie, Dnt, Expect, From, Host, If-Modified-Since, If-None-Match, Prefer, Range, Referer, User-Agent, X-Auth-Token, X-Request-Id |
| Last seen | 2025-12-05 07:08:51 |
| Note | List of acceptable languages. |
| Syntax | Accept-Language: <language> |
Example header value:cs-CZ,cs;q=0.9 |
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