Status class · Informational
1xx Informational
Interim responses that indicate request progress before a final response is sent.
- 100ContinueHeaders look fine; client may send the request body.
- 101Switching ProtocolsServer agrees to switch protocols, e.g. to WebSocket.
- 102ProcessingWebDAVWebDAV: server is still working on a long request.
- 103Early HintsPreload hints sent before the final response is ready.
Explore Other Status Classes
- 9 codes
2xx Success
Responses indicating the request was accepted and processed successfully.
- 7 codes
3xx Redirection
Responses that tell clients to perform additional actions, usually by following a new URL.
- 36 codes
4xx Client Error
Client-side request issues such as invalid syntax, missing resources, or permission failures.
- 22 codes
5xx Server Error
Server-side failures where the request was valid but the server could not complete it.