HTTP 407 Proxy Authentication Required
4xx – Client error
| Status code | 407 |
|---|---|
| Reason phrase | Proxy Authentication Required |
| Class | 4xx – Client error |
| Reference | RFC 9110 |
Frequently asked questions
What does HTTP status 407 mean?
The client must first authenticate with the proxy.
Is 407 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 407 defined?
Status code 407 is specified in RFC 9110.