The nameserver a16-64.akam.net appears in the delegation of 23 .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, 1 (4.3%) validate as secure — below the zone-wide average of 62.7%, while 8 (34.8%) are unsigned, and 13 (56.5%) currently fail validation outright (bogus) — a further 1 come back indeterminate.

One thing worth flagging: 14 of these domains (60.9%) 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.