The nameserver ns1.123hotel.dk appears in the delegation of 2,131 .dk domains in our dataset — 0.16% of every scanned .dk domain. The full list is below — here is how those domains look under the hood.

On the DNSSEC side, 1,813 (85.1%) validate as secure — comfortably above the zone-wide average of 62.7%, while 10 (0.5%) are unsigned, and 115 (5.4%) currently fail validation outright (bogus) — a further 193 come back indeterminate.

One thing worth flagging: 306 of these domains (14.4%) 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.