HTTP status code daquan

HTTP status codes fall into five categories.

100- 199 is used to specify some actions that the client should take accordingly.

200-299 is used to indicate that the request was successful.

300-399 are used for files that have been moved, and are usually included in header information to specify new address information.

400-499 is used to point out the error of the client.

500-599 is used to support server errors.

100- 199: information status code

200-299: Success Status Code

300-399: Redirect Status Code

400-499: Client Error Status Code

500-599: Server Error Status Code

Reference:

HTTP authoritative guide