What is 418?

418 I'm a teapot

The HTTP status code 418 I'm a teapot is defined as a response from an HTTP server when requested to brew coffee. It is an April Fools' joke introduced in 1998 in RFC 2324, "Hyper Text Coffee Pot Control Protocol (HTCPCP)". It indicates that the server refuses to brew coffee because it is, permanently, a teapot.

While initially intended as a humorous addition to the HTTP protocol, its presence has persisted. Though not widely implemented, some websites and APIs have used it for comedic or internal error handling purposes. It is an example of a [hypertext transfer protocol (https://www.wikiwhat.page/kavramlar/hypertext%20transfer%20protocol)] status code, falling under the category of [client error (https://www.wikiwhat.page/kavramlar/client%20error)] responses (4xx).