Every .dk domain whose A record resolves to 171.21.122.79. 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 |
|---|---|---|
| 171.21.120.0/22 | 21.171.in-addr.arpa | a1-101.akam.net a20-65.akam.net a22-66.akam.net a3-64.akam.net a4-65.akam.net a9-67.akam.net |
The zone shown is the most specific level that answers an NS query, so a classless delegation may report its parent.