Every .dk domain whose A record resolves to 51.105.228.104. 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 |
|---|---|---|
| 51.104.0.0/14 | 0.104.51.in-addr.arpa | ns1-201.azure-dns.com ns2-201.azure-dns.net ns3-201.azure-dns.org ns4-201.azure-dns.info |
| 51.104.0.0/15 | 0.104.51.in-addr.arpa | ns1-201.azure-dns.com ns2-201.azure-dns.net ns3-201.azure-dns.org ns4-201.azure-dns.info |
The zone shown is the most specific level that answers an NS query, so a classless delegation may report its parent.