(registered 2026-11-04, last updated 2026-11-04) Scheme name: op Status: Provisional Applications/protocols that use this scheme name: The Originator Profile Framework publishes DNS records under the underscored label "_op", among them SVCB records (RFC 9460) at "_op." under the protocol mapping of draft-shigeya-dns-opkey. The framework forms no URIs with this scheme; the entry is requested so that the use of SVCB under "_op" meets Section 11 of RFC 9460. Contact: shigeya&originator-profile.org Change controller: shigeya&originator-profile.org References: S. Suzuki, "Using Secure DNS for Originator Profile", Internet-Draft draft-shigeya-dns-opkey-00, 23 October 2026, . Security considerations: no URIs are formed with this scheme, so the scheme raises no security considerations of its own. The security considerations of the SVCB records under "_op" are given in the Internet-Draft above.