HTTP response status codes
http://developer.mozilla.org/en-us/docs/web/http/status
HTTP response status codes indicate whether a specific HTTP request has been successfully completed.
Responses are grouped in five classes: Informational responses (100 – 199) Successful responses (200 – 299) Redirection messages (300 – 399) Client error responses (400 – 499) Server error responses (500 – 599)
Informational responses (100 – 199)
Successful responses (200 – 299)
Redirection messages (300 – 399)
Client error responses (400 – 499)
Server error responses (500 – 599)
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