🔄 Reverse NS Lookup

Find all domains using this nameserver

This page lists every .dk domain whose delegation includes the nameserver ns5.simply.com, together with its IP addresses, network, zone-transfer and ANY-query behaviour, the protocols and RFCs it supports (TCP, EDNS, cookies, NSID, DNS over TLS/HTTPS …), 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.

🧭 ns5.simply.com at a glance#

nameserver profile from our scan data

The nameserver ns5.simply.com appears in the delegation of 3 .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, 3 (100.0%) validate as secure — comfortably above the zone-wide average of 63.9%, while 0 (0.0%) 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 3 timed domains, our resolver needed 71 ms on average to answer an A query and 66 ms for an NS query. Per nameserver set below.

🖥️ ns5.simply.com#

Probed 2026-10-13 10:12
Network
No IPs resolved yet
Probes
AXFR Refused
IXFR Refused
Glue N/A
ANY No response
Version Hidden

🧩 Protocols & RFCs#

probed 2026-10-19 10:51

Not profiled: it has no public IPv4 address we could resolve. Retried every few days.

🔗 Nameserver sets using ns5.simply.com#

top 2 by domains
Nameserver setDomainsAvg response (A)NS lookup
ns1.simply.com · ns2.simply.com · ns3.simply.com · ns4.simply.com · ns5.simply.com 2 93 ms 85 ms
ns1.simply.com · ns2.simply.com · ns3.simply.com · ns5.simply.com 1 27 ms 28 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 3 domains matching ns5.simply.com
Domain
optibiz.dk View →
sa-energi.dk View →
smykish.dk View →
📈 DNSSEC Status Over Time

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