🔄 Reverse NS Lookup

Find all domains using this nameserver

This page lists every .dk domain whose delegation includes the nameserver nicolas.headoff.biz, together with its IP addresses, network, zone-transfer and ANY-query behaviour, the nameserver sets it is used in and how fast those sets answer. Use it to size a DNS provider, audit a migration or find domains still pointing at an old server. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.

🧭 nicolas.headoff.biz at a glance

nameserver profile from our scan data

The nameserver nicolas.headoff.biz appears in the delegation of 1 .dk domain 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 64.0%, while 1 (100.0%) are unsigned, with none failing validation outright.

Delegation health looks clean, too: none of these domains currently register as lame delegations at this nameserver.

Response time: across 1 timed domains, our resolver needed 73 ms on average to answer an A query and 34 ms for an NS query. Per nameserver set below.

🖥️ nicolas.headoff.biz

Probed 2026-09-30 12:28
Network
Probes
AXFR Refused
IXFR Refused
Glue N/A
ANY Answers
Version Knot DNS 3.4.8

🔗 Nameserver sets using nicolas.headoff.biz

top 1 by domains
Nameserver setDomainsAvg response (A)NS lookup
hercules.headoff.biz · nicolas.headoff.biz 1 73 ms 34 ms

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.

Found 1 domain matching nicolas.headoff.biz
Domain
mirrors.dk View →
📈 DNSSEC Status Over Time

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