HTTP Status Code Reference

The server cannot process the request due to client error.

Authentication is required.

Payment is required to access the resource.

The server refuses to authorize the request.

The requested resource could not be found.

The HTTP method is not allowed for this resource.

No content matches the Accept headers.

Authentication with the proxy is required.

The server timed out waiting for the request.

The request conflicts with the current state.

The resource is permanently gone.

Content-Length header is required.

A request precondition was not met.

The request body exceeds the server limit.

The request URI is too long.

The media format is not supported.

The requested range cannot be served.

The Expect header cannot be met.

The server is a teapot, not a coffee maker.

The request was directed to the wrong server.

The request is well-formed but has semantic errors.

The resource is locked.

The request failed due to a previous request failure.

The server is unwilling to process a potentially replayed request.

The client should switch to a different protocol.

The request must be conditional.

The client has sent too many requests.

The request headers are too large.

The resource is blocked for legal reasons.