Look up HTTP response status codes

Search for a code such as 200, 301, 404 or 500 using your browser’s Find command. This page explains codes rather than requesting a website’s current status.

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HTTP status codes are three-digit responses that describe the result of an HTTP request. Tip: Press Ctrl+F to search quickly.

HTTP status code	Meaning
100	Continue — The server received the request headers; the client may send the request body.
101	Switching Protocols — The server is changing to the protocol named in the Upgrade header.
102	Processing — The WebDAV request is still being processed and no final response is available yet.
200	OK — The request succeeded.
201	Created — The request succeeded and created a new resource.
202	Accepted — The request was accepted for processing, but processing is not complete.
203	Non-Authoritative Information — A transforming proxy supplied metadata that may differ from the origin response.
204	No Content — The request succeeded and the response has no body.
205	Reset Content — The request succeeded and the client should reset the document view or input form.
206	Partial Content — The response contains the requested byte range or ranges.
207	Multi-Status — A WebDAV response reports independent results for multiple resources or operations.
300	Multiple Choices — More than one representation or destination is available for the resource.
301	Moved Permanently — The resource has a new permanent URL supplied in Location.
302	Found — The resource is temporarily available at the URL supplied in Location.
303	See Other — Retrieve the result from another URL with a GET request.
304	Not Modified — A conditional request found that the cached representation is still current.
305	Use Proxy — Deprecated; the resource was intended to be accessed through the proxy named in Location.
306	Unused — This status code is reserved and is no longer used.
307	Temporary Redirect — Repeat the request at the URL in Location without changing the HTTP method.
400	Bad Request — The server cannot process the request because its syntax or framing is invalid.
401	Unauthorized — Authentication credentials are missing, invalid, or insufficient for this request.
402	Payment Required — Reserved for payment-related use; semantics depend on the service.
403	Forbidden — The server understood the request but refuses to authorize it.
404	Not Found — The server cannot find the requested resource.
405	Method Not Allowed — The resource does not support the request method; Allow should list supported methods.
406	Not Acceptable — The server cannot produce a representation matching the request negotiation headers.
407	Proxy Authentication Required — The client must authenticate with the proxy.
408	Request Timeout — The server waited too long to receive the complete request.
409	Conflict — The request conflicts with the current state of the resource.
410	Gone — The resource is permanently unavailable and no forwarding address is known.
411	Length Required — The server requires a valid Content-Length header.
412	Precondition Failed — One or more request preconditions evaluated to false.
413	Content Too Large — The request body exceeds a limit the server is willing or able to process.
414	URI Too Long — The request target is longer than the server accepts.
415	Unsupported Media Type — The server does not support the request body media type or encoding.
416	Range Not Satisfiable — The requested byte range does not overlap the selected representation.
417	Expectation Failed — The server cannot meet an expectation from the Expect header.
421	Misdirected Request — The request reached a server that cannot produce a response for the target authority.
422	Unprocessable Content — The syntax is valid, but the server cannot process the supplied instructions.
423	Locked — The target resource is locked and the request cannot be applied.
424	Failed Dependency — The request failed because an operation it depended on failed.
425	Too Early — The server is unwilling to process a request that might be replayed.
426	Upgrade Required — The server requires the client to switch to a protocol listed in Upgrade.
449	Retry With — A non-standard Microsoft status asking the client to retry after taking corrective action.
500	Internal Server Error — An unexpected server condition prevented the request from completing.
501	Not Implemented — The server does not support the functionality required by the request.
502	Bad Gateway — A gateway or proxy received an invalid response from an upstream server.
503	Service Unavailable — The server is temporarily unable to handle the request, often because of maintenance or overload.
504	Gateway Timeout — 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 HTTP version used by the request.
506	Variant Also Negotiates — A server configuration error created a circular content-negotiation reference.
507	Insufficient Storage — The server cannot store the representation required to complete the request.
509	Bandwidth Limit Exceeded — A widely used, non-standard status indicating that a bandwidth quota was exceeded.
510	Not Extended — The request requires further extensions before the server can fulfill it.