Every .dk domain hosted inside the network 81.91.80.0/20, with the address, ASN and provider of each. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.
| CIDR | Reverse zone | Nameservers |
|---|---|---|
| 81.91.80.0/20 | 80.91.81.in-addr.arpa | ns.web4u.cz ns2.web4u.cz |
The zone shown is the most specific level that answers an NS query, so a classless delegation may report its parent.