// REFERENCE

NAPTR record

Type number: 35

A rewrite-rule record used mostly in telephony (ENUM) and SIP to map numbers to service URIs. Uncommon outside VoIP.

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srv
SRV record https
HTTPS record svcb
SVCB record uri
URI record opt
OPT record (EDNS0)

Types per the IANA DNS parameters registry and their RFCs. Educational content.