X-Clacks-Overhead

HTTP request headers

A request headers is an HTTP header that the client sends to the server.

ID: 39

Type	Non-standard
Last seen	2025-12-04 08:20:40
Link	http://www.gnuterrypratchett.com/
Note	X-Clacks-Overhead is a non-standardised HTTP header based upon the fictional work of the late, great, Sir Terry Pratchett.

Example header value: GNU ph