HTTPS / REST Status Codes

1xx: HTTP Informational Codes

100 : Continue
101 : Switching Protocols
102 : Processing WebDAV
103 : Checkpoint draft POST PUT6
122 : Request-URI too long IE7

2xx: HTTP Successful Codes

200 : OK
201 : Created
202 : Accepted
203 : Non-Authoritative Information 1.1
204 : No Content
205 : Reset Content
206 : Partial Content
207 : Multi Status WebDAV 4918
208 : Already Reported WebDAV 5842
226 : IM Used 3229 GET

3xx: HTTP Redirection Codes

300 : Multiple Choices
301 : Moved Permanently
302 : Found
303 : See Other 1.1
304 : Not Modified
305 : Use Proxy 1.1
306 : Switch Proxy unused
307 : Temporary Redirect 1.1
308 : Permanent Redirect 7538

307 and 308 are similiar to 302 and 301, but the new request method after redirect must be the same, as on initial request

4xx: HTTP Client Error Codes

400 : Bad Request
401 : Unauthorized
402 : Payment Required res
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 : Request Range Not Satisfiable
417 : Exception Failed
418 : I’m a teapot 2324
422 : Unprocessed Entity WebDAV 4918
423 : Locked WebDAV 4918
424 : Failed Dependency WebDAV 4918
425 : Unordered Collection 3648
426 : Upgrade Required 2817
428 : Precondition Required draft
429 : Too Many Requests draft
431 : Request Header Fields Too Large draft
444 : No Response nginx
449 : Retry With MS
450 : Blocked By Windows Parental Control MS
451 : Unavailable For Legal Reasons MS
499 : Client Closed Request nginx

5xx: HTTP Server Error Codes

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 2295
507 : Insufficient Storage WebDAV 4918
508 : Loop Detected WebDAV 5842ss
508 : Loop Detected WebDAV 5842
509 : Bandwidth Limit Exceeded nostd
510 : Not Extended 2774
511 : Network Authentication Required draft
598 : Network Read Timeout Error nostd
599 : Network Connect Timeout Error nostd

HTTP Code Comments

WebDAV : WebDAV Extension
1.1 : HTTP/1.1
IE : IE Extension
MS : MS Extension
nginx : nginx Extension
2518, 2817, 2995, 2774, 3229, 4918, 5842 : RFC Number
draft : Proposed Draft
nostd : Non Standard Extension
res : Reserved for future use
unused : No more in use [deprecated]