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

mta.21cn.com

1 answer records
Retrieved · 2026-09-22T12:48:18+00:00View JSON
ANOERRORAD no
AAAANOERROR · no answersAD no
MXNOERROR · no answersAD no
NSNOERROR · no answersAD no
CNAMENOERROR · no answersAD no
TXTNOERROR · no answersAD no
SOANOERROR · no answersAD no
CAANOERROR · no answersAD no

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
Amta.21cn.com60014.18.69.193IP WHOIS →
Authority records · 3
TypeNameTTL · secondsValueLook up
SOA21cn.com600vip3.alidns.com. hostmaster.hichina.com. 2026082516 3600 1200 86400 600
SOA21cn.com600vip3.alidns.com. hostmaster.hichina.com. 2026081716 3600 1200 86400 600
SOA21cn.com600vip3.alidns.com. hostmaster.hichina.com. 2026081712 3600 1200 86400 600

Results reflect the public DNS view and recursive caching; 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.