The nameserver ns3.dns.services appears in the delegation of 5,629 .dk domains in our dataset — 0.42% of every scanned .dk domain. The full list is below — here is how those domains look under the hood.

On the DNSSEC side, 3,347 (59.5%) validate as secure — below the zone-wide average of 62.8%, while 2,139 (38.0%) are unsigned, and 24 (0.4%) currently fail validation outright (bogus) — a further 119 come back indeterminate.

One thing worth flagging: 80 of these domains (1.4%) 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.