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Below is a list of response codes for HTTP returned by servers on the Internet. Most of these status codes are specified by RFC 2616, while some are unstandardized status codes which are also used on the web. The codes help identify the cause of the problem when a web page or other resource does not load properly. The response code ranging from 1XX to 5XX.

1xx Informational Responses

HTTP status codes in the 1xx are typically informational.

2xx Successful Responses

Status codes in the 2xx range indicate that the transaction was received, understood, accepted and processed successfully.

3xx Redirection Responses

HTTP status codes in the 3xx range pertain to redirection. The client must take additional action to complete the request.

4xx Client Error

HTTP status codes in the 4xx range indicate that a problem occurred with the request.

5xx Server Error

Error codes in the 5xx range indicate that server is aware that it has encountered an error or is otherwise incapable of performing the request.

References

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