HTTP Status Code

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Definition

HTTP Status Code

An HTTP status code is the three-digit number in the status line of an HTTP response that reports the outcome of the request. Codes are grouped by leading digit:

Class	Meaning
2XX	OK — request succeeded
3XX	Redirect — further action needed to reach the resource
4XX	Client error — the request was malformed or unauthorised
5XX	Server error — the server failed to fulfil a valid request

The status code is followed by a human-readable reason phrase, e.g. 302 Found for a redirect sent together with a Location response header.