The nameserver ns3.eurodns.com appears in the delegation of 13,545 .dk domains in our dataset — 1.02% of every scanned .dk domain. The full list is below — here is how those domains look under the hood.

On the DNSSEC side, 5,452 (40.3%) validate as secure — below the zone-wide average of 62.8%, while 7,824 (57.8%) are unsigned, and 9 (0.1%) currently fail validation outright (bogus) — a further 260 come back indeterminate.

One thing worth flagging: 116 of these domains (0.9%) look like lame delegations — the .dk registry still points them here, but this nameserver doesn't answer authoritatively for the zone, which usually means the hosting was cancelled and the delegation was left dangling.