DNSRegistration lookup
THE RECORDS BEHIND THE NAME

DNS lookup.

Explore resource records, mail routing and reverse DNS.

Public IPs automatically use PTR. Common records queries A, AAAA, MX, NS, CNAME, TXT, SOA and CAA separately.

DNS

auth1.dns.cogentco.com

2 answer records
Google Public DNS · HTTPS2026-09-20T10:34:35+00:00View JSON
Registration / WHOIS →
ANOERRORAD noResponse from 66.28.0.14.
AAAANOERRORAD noResponse from 66.28.0.30.
MXNOERROR · no answersAD noResponse from 2001:550:1:a::d.
NSNOERROR · no answersAD noResponse from 66.28.0.30.
CNAMENOERROR · no answersAD noResponse from 66.28.0.30.
TXTNOERROR · no answersAD noResponse from 66.28.0.14.
SOANOERROR · no answersAD noResponse from 2001:550:1:a::d.
CAANOERROR · no answersAD noResponse from 66.28.0.30.

AD indicates that the resolver reports DNSSEC-validated data. “AD no” can also mean the zone is unsigned. NXDOMAIN is a DNS result, not a domain-availability check.

TypeNameTTL · secondsValueLook up
Aauth1.dns.cogentco.com1080066.28.0.14IP WHOIS →
AAAAauth1.dns.cogentco.com216002001:550:1:a::dIP WHOIS →
Authority records · 1
TypeNameTTL · secondsValueLook up
SOAdns.cogentco.com1800auth1.dns.cogentco.com. dns.cogentco.com. 2026083101 10800 3600 604800 43200—

Queries are sent to Google Public DNS over HTTPS. Results reflect its public DNS view and cache; they may differ from your local network. TXT strings retain their DNS quoting. Common records does not enumerate every name or record in a zone.