The nameserver ns2.atznet.dk appears in the delegation of 857 .dk domains in our dataset — 0.06% of every scanned .dk domain. The full list is below — here is how those domains look under the hood.

On the DNSSEC side, 848 (98.9%) validate as secure — comfortably above the zone-wide average of 62.7%, while 6 (0.7%) are unsigned, and 1 (0.1%) currently fail validation outright (bogus) — a further 2 come back indeterminate.

One thing worth flagging: 3 of these domains (0.4%) 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.