Sources:
- https://developer.mozilla.org/en-US/docs/Web/HTTP/Status
- https://en.wikipedia.org/wiki/List_of_HTTP_status_codes
Table of contents
Open Table of contents
-
400-499: Client error responses
- 400 Bad Request
- 401 Unauthorized
- 402 Payment Required
- 403 Forbidden
- 404 Not Found
- 405 Method Not Allowed
- 406 Not Acceptable
- 407 Proxy Authentication Required
- 408 Request Timeout
- 409 Conflict
- 410 Gone
- 411 Length Required
- 412 Precondition Failed
- 413 Payload Too Large
- 414 URI Too Long
- 415 Unsupported Media Type
- 416 Range Not Satisfiable
- 417 Expectation Failed
- 418 I’m a teapot
- 421 Misdirected Request
- 422 Unprocessable Content (WebDAV)
- 423 Locked (WebDAV)
- 424 Failed Dependency (WebDAV)
- 425 Too Early
- 426 Upgrade Required
- 428 Precondition Required
- 429 Too Many Requests
- 431 Request Header Fields Too Large
- 451 Unavailable For Legal Reasons
100-199: Informational responses
100 Continue
101 Switching Protocols
102 Processing (WebDAV)
103 Early Hints
200-299: Success responses
200 OK
201 Created
202 Accepted
203 Non-Authoritative Information
204 No Content
205 Reset Content
206 Partial Content
207 Multi-Status (WebDAV)
208 Already Reported (WebDAV)
226 IM Used (HTTP Delta encoding)
300-399: redirection messages
300 Multiple Choices
301 Moved Permanently
302 Found
303 See Other
304 Not Modified
305 Use Proxy
306 unused
307 Temporary Redirect
308 Permanent Redirect
400-499: Client error responses
400 Bad Request
401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found
405 Method Not Allowed
406 Not Acceptable
407 Proxy Authentication Required
408 Request Timeout
409 Conflict
410 Gone
411 Length Required
412 Precondition Failed
413 Payload Too Large
414 URI Too Long
415 Unsupported Media Type
416 Range Not Satisfiable
417 Expectation Failed
418 I’m a teapot
421 Misdirected Request
422 Unprocessable Content (WebDAV)
423 Locked (WebDAV)
424 Failed Dependency (WebDAV)
425 Too Early
426 Upgrade Required
428 Precondition Required
429 Too Many Requests
431 Request Header Fields Too Large
451 Unavailable For Legal Reasons
500-599: Server error responses
500 Internal Server Error
The server encountered an unexpected condition that prevented it from fulfilling the request.
A generic “catch-all” response. Usually, this indicates the server cannot find a better 5xx error code to respond. Sometimes, server administrators log error responses like the 500 status code with more details about the request to prevent the error from happening again in the future.
501 Not Implemented
The request method is not supported by the server and cannot be handled. The only methods that servers are required to support (and therefore that must not return this code) are GET and HEAD.
This status can also send a Retry-After header, telling the requester when to check back to see if the functionality is supported by then.
If the server does recognize the method, but intentionally does not support it, the appropriate response is 405 Method Not Allowed.
502 Bad Gateway
The server, while working as a gateway/proxy to get a response needed to handle the request, got an invalid response from the upstream server.