🔄 Reverse NS Lookup

The nameserver ns2.bb-online.net appears in the delegation of 42 .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, 0 (0.0%) validate as secure — below the zone-wide average of 63.9%, while 1 (2.4%) are unsigned, with none failing validation outright — a further 41 come back indeterminate.

One thing worth flagging: 41 of these domains (97.6%) 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.

Response time: across 1 timed domains, our resolver needed 2,045 ms on average to answer an A query and 40 ms for an NS query. Per nameserver set below.

Not profiled: every domain we hold for it is a lame delegation, so there is no zone to ask it about. Retried every few days.

Times are the scanner's own lookups through its resolver on each domain's latest scan, so they include resolver overhead; compare sets with each other rather than reading them as raw authoritative round-trip times.