| CODE | INDICATION |
| 2xx | Success |
| 200 | OK - the request was fulfilled. |
| 201 | OK - following a POST command. |
| 202 | OK - accepted for processing, but processing is not completed. |
| 203 | OK - partial information--the returned information is only partial. |
| 204 | OK - no response--request received but no information exists to send back. |
| 3xx | Redirection |
| 301 | Moved - the data requested has a new location and the change is permanent. |
| 302 | Found - the data requested has a different URL temporarily. |
| 303 | Method - under discussion, a suggestion for the client to try another location. |
| 304 | Not Modified - the document has not been modified as expected. |
| 4xx | Error seems to be in the client |
| 400 | Bad request - syntax problem in the request or it could not be satisfied. |
| 401 | Unauthorized - the client is not authorized to access data. |
| 402 | Payment required - indicates a charging scheme is in effect. |
| 403 | Forbidden - access not required even with authorization. |
| 404 | Not found - server could not find the given resource. |
| 5xx | Error seems to be in the server |
| 500 | Internal Error - the server could not fulfill the request because of an unexpected condition. |
| 501 | Not implemented - the sever does not support the facility requested. |
| 502 | Server overloaded - high load (or servicing) in progress. |
| 503 | Gateway timeout - server waited for another service that did not complete in time. |
