HTTP Status Codes

Table 1 describes common status codes.

**Table 1** HTTP status codes
Status Code & Message	Description
200 OK	The request has been processed successfully.
204 No Content	The server successfully processed the request and is not returning any content.
400 Bad Request	The server failed to process the request. Possible causes include: Malformed request syntax Invalid request message framing
401 Unauthorized	The request requires user authentication. For example, the username and password are required.
403 Forbidden	The server understood the request, but is refusing to fulfill it.
404 Not Found	The server has not found anything matching the request URI.
405 Method Not Allowed	The method specified in the request line is not allowed for the resource identified by the request URI.
406 Not Acceptable	The response generated by the server could not be accepted by the client.
407 Proxy Authentication Required	You must first authenticate yourself with the proxy.
408 Request Timeout	The server timed out waiting for the request.
409 Conflict	The request could not be completed due to a conflict with the current state of the resource.
410 Gone	The requested resource is no longer available at the server and no forwarding address is known.
412 Precondition Failed	The server does not meet one of the preconditions that the requester put on the request.
500 Internal Server Error	The server encountered an unexpected condition which prevented it from fulfilling the request.
501 Not Implemented	The server does not support the functionality required to fulfill the request.
502 Bad Gateway	The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request.
503 Service Unavailable	The request could not be processed by the server because the server is being maintained or overloaded.
504 Gateway Timeout	The server was acting as a gateway or proxy and did not receive a timely response from the upstream server.