Label
IANA permanent
request
RFC 3253
Declared by 3 providers across 7 published specification files in the APIs.io network.
A count here is providers whose published contract declares this header — not
providers who send it. Response headers set at the edge rarely appear in an OpenAPI at all, so a low
number can measure documentation practice rather than deployment.
The registry
| Status | permanent |
|---|---|
| Reference | RFC 3253: Versioning Extensions to WebDAV: (Web Distributed Authoring and Versioning) |
Providers declaring it (3)
Explore
All headers Representation Metadata Guidance on headers.apievangelist.com