The nameserver ns1-01.azure-dns.com appears in the delegation of 730 .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, 48 (6.6%) validate as secure — below the zone-wide average of 62.5%, while 597 (81.8%) are unsigned, and 1 (0.1%) currently fail validation outright (bogus) — a further 84 come back indeterminate.

One thing worth flagging: 80 of these domains (11.0%) 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.