The nameserver ns61.domaincontrol.com appears in the delegation of 18,533 .dk domains in our dataset — 1.39% of every scanned .dk domain. The full list is below — here is how those domains look under the hood.

On the DNSSEC side, 1 (0.0%) validate as secure — below the zone-wide average of 62.8%, while 15,954 (86.1%) are unsigned, and 1 (0.0%) currently fail validation outright (bogus) — a further 2,577 come back indeterminate.

One thing worth flagging: 2,469 of these domains (13.3%) 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.