HTTP 411 Length Required
4xx – Client error
| Status code | 411 |
|---|---|
| Reason phrase | Length Required |
| Class | 4xx – Client error |
| Reference | RFC 9110 |
Frequently asked questions
What does HTTP status 411 mean?
The server requires a Content-Length header.
Is 411 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 411 defined?
Status code 411 is specified in RFC 9110.