HTTP 101 Switching Protocols
1xx – Informational
| Status code | 101 |
|---|---|
| Reason phrase | Switching Protocols |
| Class | 1xx – Informational |
| Reference | RFC 9110 |
Frequently asked questions
What does HTTP status 101 mean?
The server switches protocols as requested by the client, e.g. to WebSocket.
Is 101 an error?
No. 101 is an interim informational response; the final response follows.
Where is HTTP 101 defined?
Status code 101 is specified in RFC 9110.