Every .dk domain whose A record resolves to 89.23.254.22. 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 |
|---|---|---|
| 89.23.224.0/19 | 224.23.89.in-addr.arpa | authns1.fiberby.net authns2.fiberby.net authns3.fiberby.net authns4.fiberby.net |
The zone shown is the most specific level that answers an NS query, so a classless delegation may report its parent.