The nameserver ns1.nhl-data.dk appears in the delegation of 1,574 .dk domains in our dataset — 0.12% of every scanned .dk domain. The full list is below — here is how those domains look under the hood.

On the DNSSEC side, 375 (23.8%) validate as secure — below the zone-wide average of 62.7%, while 1,170 (74.3%) are unsigned, and 5 (0.3%) currently fail validation outright (bogus) — a further 24 come back indeterminate.

One thing worth flagging: 94 of these domains (6.0%) 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.