HTTP Status Codes

1xx : Informational
100 Continue
101 Switching Protocols

2xx : Successful
200 OK
201 Created
202 Accepted
203 Non-Authorized Information
204 No Content
205 Reset Content
206 Partial Content

3xx : Redirection
300 Multiple Choices
301 Moved Permanently
302 Moved Temporarily
303 See Other
304 Not Modified
305 Use Proxy

4xx : Client Error
400 Bad Request
401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found
405 Method Not Allowed
406 Not Accepted
407 Proxy Authentication Required
408 Requested Timeout
409 Conflict
410 Gone
411 Length Required
412 Precondition Failed
413 Request Entity Too Large
415 Unsupported Media Type

5xx : Server Error
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Timeout
505 HTTP Version Not Supported