The nameserver ns1.hostcenter.dk appears in the delegation of 101 .dk domains in our dataset — 0.01% of every scanned .dk domain. The full list is below — here is how those domains look under the hood.

On the DNSSEC side, 9 (8.9%) validate as secure — below the zone-wide average of 62.7%, while 74 (73.3%) are unsigned, and 1 (1.0%) currently fail validation outright (bogus) — a further 17 come back indeterminate.

One thing worth flagging: 17 of these domains (16.8%) 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.