HTTP Status Codes

1xxInformational
100Continue
101Switching Protocols
102Processing
2xxSuccess
200OK
201Created
202Accepted
203Non-Authoritative Information
204No Content
205Reset Content
206Partial Content
207Multi-Status
3xxRedirect
300Multiple Choices
301Moved Permanently
302Found
303See Other
304Not Modified
305Use Proxy
306unused
307Temporary Redirect
4xxClient Error
400Bad Request
401Authorization Required
402Payment Required
403Forbidden
404Not Found
405Method Not Allowed
406Not Acceptable
407Proxy Authentication Required
408Request Time-out
409Conflict
410Gone
411Length Required
412Precondition Failed
413Request Entity Too Large
414Request-URI Too Large
415Unsupported Media Type
416Requested Range Not Satisfiable
417Expectation Failed
418I'm a teapot
419unused
420unused
421unused
422Unprocessable Entity
423Locked
424Failed Dependency
425No code
426Upgrade Required
5xxServer Error
500Internal Server Error
501Method Not Implemented
502Bad Gateway
503Service Temporarily Unavailable
504Gateway Time-out
505HTTP Version Not Supported
506Variant Also Negotiates
507Insufficient Storage
508unused
509unused
510Not Extended