Every .dk domain whose A record resolves to 51.21.2.33. Shared-hosting servers often carry hundreds of sites on one address; this reverse IP lookup shows exactly which .dk names share it. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.
| CIDR | Reverse zone | Nameservers |
|---|---|---|
| 51.20.0.0/14 | 0.20.51.in-addr.arpa | ns1-24-eu-north-1.ec2-rdns.amazonaws.com ns2-24-eu-north-1.ec2-rdns.amazonaws.com ns3-24-eu-north-1.ec2-rdns.amazonaws.com ns4-24-eu-north-1.ec2-rdns.amazonaws.com |
The zone shown is the most specific level that answers an NS query, so a classless delegation may report its parent.