Every .dk domain whose A record resolves to 81.130.165.40. 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 |
|---|---|---|
| 81.128.0.0/11 | 128.81.in-addr.arpa | ns0.bt.net ns1.bt.net ns2.bt.net |
The zone shown is the most specific level that answers an NS query, so a classless delegation may report its parent.