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