Urgency
IANA permanent
response
RFC 8030
Declared by 1 provider across 2 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 8030, Section 5.3: Generic Event Delivery Using HTTP Push |
Providers declaring it (1)
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All headers Connection & Transport Guidance on headers.apievangelist.com