Since I always forget some of the less common HTML status codes when debugging or testing, I compiled a cheat sheet for all the HTML status codes.
In most cases, non-HTML 1.1 defined codes reference their defining source RFC. It also includes some less common “standards”.
I hope you find it useful too.
Source: http://en.wikipedia.org/wiki/List_of_HTTP_status_codes
1xx Informational
100 Continue
101 Switching Protocols
102 Processing (WebDAV) (RFC 2518)
103 Checkpoint
122 Request-URI too long
2xx Success
200 OK
201 Created
202 Accepted
203 Non-Authoritative Information (since HTTP/1.1)
204 No Content
205 Reset Content
206 Partial Content
207 Multi-Status (WebDAV) (RFC 4918)
226 IM Used (RFC 3229)
3xx Redirection
300 Multiple Choices
301 Moved Permanently
302 Found
303 See Other (since HTTP/1.1)
304 Not Modified
305 Use Proxy (since HTTP/1.1)
306 Switch Proxy
307 Temporary Redirect (since HTTP/1.1)
308 Resume Incomplete
4xx Client Error
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 Request Entity Too Large
414 Request-URI Too Long
415 Unsupported Media Type
416 Requested Range Not Satisfiable
417 Expectation Failed
418 I’m a teapot (RFC 2324)
422 Unprocessable Entity (WebDAV) (RFC 4918)
423 Locked (WebDAV) (RFC 4918)
424 Failed Dependency (WebDAV) (RFC 4918)
425 Unordered Collection (RFC 3648)
426 Upgrade Required (RFC 2817)
444 No Response
449 Retry With
450 Blocked by Windows Parental Controls
499 Client Closed Request
5xx Server Error
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Timeout
505 HTTP Version Not Supported
506 Variant Also Negotiates (RFC 2295)
507 Insufficient Storage (WebDAV)(RFC 4918)
509 Bandwidth Limit Exceeded (Apache bw/limited extension)
510 Not Extended (RFC 2774)
598 (Informal convention) network read timeout error
599 (Informal convention) network connect timeout error
Image Attribution: sanbeiji on Flickr via CC license
