wire / dns-rrtype / OPT

OPT — OPT (type 41)

DNS resource record type OPT (numeric type 41): OPT. Defined in RFC3225, RFC6891.

dns-rrtype kind rrtype status standard verification verified tier A iana-registry-row@1

registry record

value: 41

references: RFC3225, RFC6891

TYPE	OPT
Value	41
Meaning	OPT
Reference	[RFC3225][RFC6891]
Template
Registration Date

provenance

source: https://www.iana.org/assignments/dns-parameters/dns-parameters-4.csv
version: IANA registry, Last-Modified: Mon, 29 Dec 2025 20:21:25 GMT
retrieved: 2026-05-29 · updated: 2026-05-29

agent: curl -H 'accept: application/json' wire.phall.io/dns-rrtype/OPT or /dns-rrtype/OPT.json