Every .dk domain whose A record resolves to 81.31.50.136. 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 |
|---|---|---|
| 81.31.48.0/20 | 48.31.81.in-addr.arpa | dns1.cloudns.net dns2.cloudns.net dns5.cloudns.net dns6.cloudns.net |
The zone shown is the most specific level that answers an NS query, so a classless delegation may report its parent.