topic Registered
Verified 2026-09-19 · registry updated 2023-06-13

HTTP registry: 0x0c

Registered value from the IANA HTTP registry.

HTTP/3 registry values apply to QUIC-backed streams, frames, settings, or protocol negotiation. 0x0c is permanent in HTTP/3 Frame Types. Defining reference: RFC9412, Section 2.

httpregistryhttp3-parametershttp3-parameters-frame-types

Identifier (http)

0x0c

Registered value from the IANA HTTP registry.

Preserve HTTP semantics while accounting for QUIC migration, TLS/ALPN negotiation, and early-data replay risk.

This registry value is currently marked permanent by IANA. Follow the defining specification before sending, accepting, or proxying it.

IANA registry: http3-parameters/http3-parameters-frame-types

Registry reference: RFC9412, Section 2

Sources

Permalink: https://merginit.com/reference/http/registry/http3-parameters/http3-parameters-frame-types/0x0c-264