HTTP status codes

Web

Searchable reference for every HTTP status code in the IANA registry.

Code	Phrase	Class	Description
100	Continue	1xx Info	Initial part received; client should send the rest.
101	Switching Protocols	1xx Info	Server agrees to switch protocols per Upgrade header.
102	Processing	1xx Info	WebDAV — request received, processing continues.
103	Early Hints	1xx Info	Hint headers (e.g. Link preload) before the final response.
200	OK	2xx Success	Standard success.
201	Created	2xx Success	Resource successfully created; Location header points to it.
202	Accepted	2xx Success	Request accepted but not yet processed.
203	Non-Authoritative Information	2xx Success	Returned metadata may be from a copy or third party.
204	No Content	2xx Success	Success, but no body.
205	Reset Content	2xx Success	Client should reset the document view.
206	Partial Content	2xx Success	Range request fulfilled.
207	Multi-Status	2xx Success	WebDAV — multiple statuses for sub-requests.
208	Already Reported	2xx Success	WebDAV — members already enumerated.
226	IM Used	2xx Success	Delta encoding instance manipulations applied.
300	Multiple Choices	3xx Redirect	Multiple options for the resource.
301	Moved Permanently	3xx Redirect	Resource permanently moved.
302	Found	3xx Redirect	Temporary redirect (legacy method-changing).
303	See Other	3xx Redirect	GET the URL in Location header.
304	Not Modified	3xx Redirect	Conditional GET — cached copy still valid.
305	Use Proxy	3xx Redirect	Deprecated; access through proxy in Location.
307	Temporary Redirect	3xx Redirect	Like 302 but preserves method.
308	Permanent Redirect	3xx Redirect	Like 301 but preserves method.
400	Bad Request	4xx Client	Malformed request.
401	Unauthorized	4xx Client	Authentication required.
402	Payment Required	4xx Client	Reserved for future use.
403	Forbidden	4xx Client	Authenticated, but not authorized.
404	Not Found	4xx Client	No resource at that URL.
405	Method Not Allowed	4xx Client	HTTP method unsupported here.
406	Not Acceptable	4xx Client	Cannot satisfy Accept-* headers.
407	Proxy Authentication Required	4xx Client	Auth needed for proxy.
408	Request Timeout	4xx Client	Client took too long to send request.
409	Conflict	4xx Client	Conflict with current resource state.
410	Gone	4xx Client	Permanently removed.
411	Length Required	4xx Client	Content-Length header required.
412	Precondition Failed	4xx Client	Precondition (If-*) header evaluation failed.
413	Content Too Large	4xx Client	Payload exceeds server limits.
414	URI Too Long	4xx Client	Request URI too long.
415	Unsupported Media Type	4xx Client	Body media type not supported.
416	Range Not Satisfiable	4xx Client	Range request out of bounds.
417	Expectation Failed	4xx Client	Expect header could not be met.
418	I'm a teapot	4xx Client	April Fools' code.
421	Misdirected Request	4xx Client	Server cannot produce response for this URI.
422	Unprocessable Content	4xx Client	Semantic errors prevent processing.
423	Locked	4xx Client	WebDAV — resource is locked.
424	Failed Dependency	4xx Client	WebDAV — dependent request failed.
425	Too Early	4xx Client	Refuses to process replayable request.
426	Upgrade Required	4xx Client	Client must upgrade protocol.
428	Precondition Required	4xx Client	Origin requires conditional request.
429	Too Many Requests	4xx Client	Rate limit exceeded.
431	Request Header Fields Too Large	4xx Client	Headers exceed server limits.
451	Unavailable For Legal Reasons	4xx Client	Resource blocked for legal reasons.
500	Internal Server Error	5xx Server	Generic server failure.
501	Not Implemented	5xx Server	Server doesn't support the functionality.
502	Bad Gateway	5xx Server	Invalid upstream response.
503	Service Unavailable	5xx Server	Overloaded or down for maintenance.
504	Gateway Timeout	5xx Server	Upstream timed out.
505	HTTP Version Not Supported	5xx Server	Protocol version not supported.
506	Variant Also Negotiates	5xx Server	Transparent content negotiation loop.
507	Insufficient Storage	5xx Server	WebDAV — not enough storage.
508	Loop Detected	5xx Server	WebDAV — infinite loop in processing.
510	Not Extended	5xx Server	Further extensions required.
511	Network Authentication Required	5xx Server	Captive portal — auth needed for network.