| Code | Short Description |
|---|
| 302 | Found but |
The data requested actually resides under a different URL, however, the redirection may be altered on occasion (when making links to these kinds of document, the browser should default to using the Udi of the redirection document, but have the option of linking to the final document) as for "Forward". |
| 403 | Forbidden | The request is for something forbidden. Authorization will not help |
| 404 | Page Not Found |
| 405 | Method Not Allowed |
| 500 | Internal Error |
| 503 | Gateway timeout |
This is equivalent to Internal Error 500, but in the case of a server which is in turn accessing some other service, this indicates that the respose from the other service did not return within a time that the gateway was prepared to wait. As from the point of view of the clientand the HTTP transaction the other service is hidden within the server, this maybe treated identically to Internal error 500, but has more diagnostic value. |