HTTP Status Code Reference

Initial request is accepted; continue sending it.

Server is changing protocols as requested.

Request succeeded.

Request succeeded and created a resource.

Request accepted for later processing.

Request succeeded with no response body.

Resource has a new permanent URL.

Resource is temporarily available elsewhere.

Cached response can be reused.

Request syntax or parameters are invalid.

Authentication is required or invalid.

Server refuses the authenticated request.

Resource was not found.

Request conflicts with current resource state.

Request is syntactically valid but semantically invalid.

Client sent too many requests in a period.

Server hit an unexpected failure.

Upstream server returned an invalid response.

Server is temporarily unable to handle the request.

Upstream server did not respond in time.