Nachstehend eine übersichtliche Liste aller HTTP-Statuscodes, die braucht man ja doch dauernd. Zur besseren Übersicht sind die Codes in die einzelnen Klassen aufgeteilt, die erste Zahl kennzeichnet die Klasse:

1xx (Informational)

100 – Continue
101 – Switching Protocols

2xx (Success)

200 – OK
201 – Created
202 – Accepted
203 – Non-Authoritative Information
204 – No Content
205 – Reset Content
206 – Partial Content

3xx (Redirection)

300 – Multiple Choices
301 – Moved Permanently
302 – Moved Temporary
304 – Not Modified
305 – Use Proxy
306 – Switch Proxy
307 – Temporary Redirect

4xx Client Errors

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

5xx (Server Errors)

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