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HTTP Status Codes

1XX INFORMATIONAL (4)

Code	Name	Description
100	Continue	The server has received the request headers and the client should proceed to send the request body.
101	Switching Protocols	The server is switching protocols as requested by the client via the Upgrade header.
102	Processing	The server has received and is processing the request, but no response is available yet.
103	Early Hints	Used to return some response headers before final HTTP message.

2XX SUCCESS (7)

Code	Name	Description
200	OK	The request has succeeded.
201	Created	The request has been fulfilled and a new resource has been created.
202	Accepted	The request has been accepted for processing, but the processing has not been completed.
203	Non-Authoritative Information	The returned metainformation is from a local or third-party copy, not the origin server.
204	No Content	The server has fulfilled the request but does not need to return an entity-body.
205	Reset Content	The server has fulfilled the request and the user agent should reset the document view.
206	Partial Content	The server has fulfilled the partial GET request for the resource.

3XX REDIRECTION (7)

Code	Name	Description
300	Multiple Choices	The target resource has more than one representation, each with its own URI.
301	Moved Permanently	The target resource has been assigned a new permanent URI.
302	Found	The target resource resides temporarily under a different URI.
303	See Other	The server is redirecting the user agent to a different resource via a GET request.
304	Not Modified	The resource has not been modified since the last request.
307	Temporary Redirect	The target resource resides temporarily under a different URI while preserving the method.
308	Permanent Redirect	The target resource has been assigned a new permanent URI while preserving the method.

4XX CLIENT ERROR (26)

Code	Name	Description
400	Bad Request	The server cannot process the request due to something perceived to be a client error.
401	Unauthorized	The request requires user authentication.
402	Payment Required	Reserved for future use.
403	Forbidden	The server understood the request but refuses to authorize it.
404	Not Found	The origin server did not find a current representation for the target resource.
405	Method Not Allowed	The method received in the request-line is not supported by the target resource.
406	Not Acceptable	The target resource does not have a representation acceptable per the Accept headers.
407	Proxy Authentication Required	The client must first authenticate itself with the proxy.
408	Request Timeout	The server did not receive a complete request message within the time it was prepared to wait.
409	Conflict	The request could not be completed due to a conflict with the current state of the target resource.
410	Gone	The target resource is no longer available and no forwarding address is known.
411	Length Required	The server refuses to accept the request without a defined Content-Length.
412	Precondition Failed	One or more conditions given in the request header fields evaluated to false.
413	Payload Too Large	The request payload is larger than the server is willing or able to process.
414	URI Too Long	The request-target is longer than the server is willing to interpret.
415	Unsupported Media Type	The origin server refuses the request because the payload is in an unsupported format.
416	Range Not Satisfiable	None of the ranges in the Range header field overlap the current extent of the selected resource.
417	Expectation Failed	The expectation given in the Expect header field could not be met by the server.
418	I'm a teapot	The server refuses to brew coffee because it is, permanently, a teapot.
422	Unprocessable Content	The server understands the content type and syntax of the request entity but was unable to process the contained instructions.
425	Too Early	The server is unwilling to risk processing a request that might be replayed.
426	Upgrade Required	The server refuses to perform the request using the current protocol.
428	Precondition Required	The origin server requires the request to be conditional.
429	Too Many Requests	The user has sent too many requests in a given amount of time.
431	Request Header Fields Too Large	The server is unwilling to process the request because its header fields are too large.
451	Unavailable For Legal Reasons	The server is denying access to the resource as a consequence of a legal demand.

5XX SERVER ERROR (9)

Code	Name	Description
500	Internal Server Error	The server encountered an unexpected condition that prevented it from fulfilling the request.
501	Not Implemented	The server does not support the functionality required to fulfill the request.
502	Bad Gateway	The server, while acting as a gateway or proxy, received an invalid response from an inbound server.
503	Service Unavailable	The server is currently unable to handle the request due to temporary overloading or maintenance.
504	Gateway Timeout	The server, while acting as a gateway or proxy, did not receive a timely response from an upstream server.
505	HTTP Version Not Supported	The server does not support the major version of HTTP that was used in the request.
507	Insufficient Storage	The method could not be performed on the resource because the server is unable to store the representation needed to complete the request.
508	Loop Detected	The server detected an infinite loop while processing the request.
511	Network Authentication Required	The client needs to authenticate to gain network access.