HTTP Status Codes¶
Table 1 describes common status codes.
Return Value | Description |
|---|---|
200 OK | The request has been processed successfully. |
204 No Content | The server does not return any information. |
400 Bad Request | The server failed to process the request. Possible causes include:
|
401 Unauthorized | The request requires user authentication. For example, the username and password are required. |
403 Forbidden | You are forbidden to access the requested page. |
404 Not Found | The request failed because the requested resource could not be found on the server. |
405 Method Not Allowed | You are not allowed to use the method specified in the request. |
406 Not Acceptable | The response generated by the server could not be accepted by the client. |
407 Proxy Authentication Required | You must use the proxy server for authentication so that the request can be processed. |
408 Request Timeout | The request timed out. |
409 Conflict | The request could not be processed due to a conflict. |
410 Gone | The requested resource is not available on the server and no known forwarding address is provided. |
412 Precondition Failed | One or more conditions specified in the request header are not met when the server tests the conditions. |
500 Internal Server Error | The server failed to process the request due to an unexpected condition. |
501 Not Implemented | Failed to complete the request because the server does not support the requested function. |
502 Bad Gateway | Failed to complete the request because the server has received an invalid response. |
503 Service Unavailable | Failed to complete the request because the service is unavailable. |
504 Gateway Timeout | The gateway timed out. |