HTTP 406 Not Acceptable
4xx – Client error
| Status code | 406 |
|---|---|
| Reason phrase | Not Acceptable |
| Class | 4xx – Client error |
| Reference | RFC 9110 |
Frequently asked questions
What does HTTP status 406 mean?
The server cannot produce a response in a format the client accepts.
Is 406 an error?
Yes, a client error (4xx): the problem lies in the request – for example a wrong URL, missing authentication or invalid data.
Where is HTTP 406 defined?
Status code 406 is specified in RFC 9110.