The nameserver ns1.desec.io appears in the delegation of 622 .dk domains in our dataset — 0.05% of every scanned .dk domain. The full list is below — here is how those domains look under the hood.

On the DNSSEC side, 511 (82.2%) validate as secure — comfortably above the zone-wide average of 62.7%, while 99 (15.9%) are unsigned, and 12 (1.9%) currently fail validation outright (bogus).

One thing worth flagging: 10 of these domains (1.6%) 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.