HTTP 101 Switching Protocols

Example response

HTTP/1.1 101 Switching Protocols

Look up the headers shown here in the HTTP headers reference.

Common questions

What does HTTP 101 mean?

Switching Protocols. The server agrees to switch protocols as asked in the Upgrade header, for example to WebSocket.

Is 101 an error?

No. 1xx codes are informational responses: The request was received and the process is continuing.

Other 1xx codes