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Sec-GPC

IANA provisional reached by regulation

Registered with IANA and declared by no provider in the APIs.io network.

What this header is for, and how to use it →

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.

Reached by regulation

Basis: mandated. The law, or a technical standard the law makes binding, names this header. Observable at the edge, without credentials.

ccpa-cpra

Carried by the global-privacy-control standard.

The registry

Statusprovisional
ReferenceGlobal Privacy Control (GPC)

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All headers Privacy & Consent Guidance on headers.apievangelist.com