HTTP Status Codes

This is the table of suggested HTTP status codes. The complete list of registered status codes is maintained by the IANA at the Hypertext Transfer Protocol (HTTP) Status Code Registry.

Code	Description
100 Continue	Begin uploading the request message-body.
101 Switching Protocols	The server will change the protocol of the connection as requested.
102 Processing	The server is still processing the request.
200 OK	The request completed as requested.
201 Created	One or more resources were created.
202 Accepted	The requested operation has been queued.
204 No Content	The request was successful and the response has no body.
206 Partial Content	One or more resources were partial content.
303 See Other	The request was completed and the result is available at another location.
304 Not Modified	The client already has an up-to-date copy of the representation.
307 Temporary Redirect	The request must be re-made at a different URI.
308 Permanent Redirect	The resource has moved to a different URI and the request must be re-made.
400 Bad Request	The resource does not permit the requested method.
401 Unauthorized	The user lacks permission/credentials to perform the request.
403 Forbidden	The server refuses to authorize the request.
404 Not Found	The resource does not exist
405 Method Not Allowed	The resource does not permit the requested method.
410 Gone	The resource was deleted and does not exist anymore
411 Length Required	The request is missing a Content-Length header
412 Precondition Failed	The conditional request failed.
413 Payload Too Large	The request body is too large.
414 URI Too Long	The request URI is too large.
415 Unsupported Media Type	The Content-Encoding or Content-Type is not acceptable.
416 Range Not Satisfiable	The requested Range is not acceptable.
417 Expectation Failed	The Expect header has an unsupported value.
428 Precondition Required	The request is missing conditional request headers
429 Too Many Requests	The client has exceeded request limits
431 Request Header Fields Too Large	A request header is too long.
451 Unavailable For Legal Reasons	The request cannot be filled due to a legal demand.
500 Server Error	The server does not support the functionality required to fill the request.
501 Not Implemented	The server does not support the functionality required to fill the request.
502 Bad Gateway	An intermediate server received an invalid response from an inbound server.
503 Service Unavailable	Indicates a temporary problem with the server that will likely improve after a delay
507 Insufficient Storage	The server cannot fill the request because it is out of storage space.