alt Hacker Newsa lookup for _dns.resolver.arpa, a name reserved for ... asking whether an encrypted version exists, and where it can be reached
Neat! Let's try: nslookup _dns.resolver.arpa
[mine] unblound.lan can't find _dns.resolver.arpa: Non-existent domain
[1.1.1.1] can't find _dns.resolver.arpa: Non-existent domain
[8.8.8.8] No internal type for both IPv4 and IPv6 Addresses (A+AAAA)
records available for _dns.resolver.arpa
[9.9.9.9] Name: _dns.resolver.arpa
You have asked the wrong question. This standard does not describe an “A” or “AAAA” record. Use the "-query" option to nslookup(1). Or, use dig(1).
https://datatracker.ietf.org/doc/html/rfc9462#name-discovery...
This is a proposed standard. The reserved domain is very new. Widespread deployment is not expected or mandatory.