This page lists every .dk domain whose delegation includes the nameserver ns2.flydns.net, 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.
Not probed yet. This nameserver is queued; the probe runs in the background and the result usually shows here within a few minutes.
| Reverse zone | Prefix | Prefixes | Checked |
|---|---|---|---|
| 0.16.37.in-addr.arpa | 37.16.0.0/24 | 1 | 2026-10-16 |
| 10.16.37.in-addr.arpa | 37.16.10.0/24 | 1 | 2026-10-16 |
| 11.16.37.in-addr.arpa | 37.16.11.0/24 | 1 | 2026-10-16 |
| 12.66.137.in-addr.arpa | 137.66.12.0/24 | 1 | 2026-10-16 |
| 124.241.66.in-addr.arpa | 66.241.124.0/24 | 1 | 2026-10-16 |
| 125.241.66.in-addr.arpa | 66.241.125.0/24 | 1 | 2026-10-16 |
| 140.83.77.in-addr.arpa | 77.83.140.0/24 | 1 | 2026-10-09 |
| 141.83.77.in-addr.arpa | 77.83.141.0/24 | 1 | 2026-10-16 |
| 144.93.188.in-addr.arpa | 188.93.144.0/24 | 1 | 2026-10-16 |
| 147.93.188.in-addr.arpa | 188.93.147.0/24 | 1 | 2026-10-16 |
| 192.188.213.in-addr.arpa | 213.188.192.0/24 | 1 | 2026-10-16 |
| 193.188.213.in-addr.arpa | 213.188.193.0/24 | 1 | 2026-10-16 |
| 199.248.149.in-addr.arpa | 149.248.199.0/24 | 1 | 2026-10-16 |
| 20.16.37.in-addr.arpa | 37.16.20.0/24 | 1 | 2026-10-16 |
| 202.248.149.in-addr.arpa | 149.248.202.0/24 | 1 | 2026-10-16 |
| 207.188.213.in-addr.arpa | 213.188.207.0/24 | 1 | 2026-10-16 |
| 209.188.213.in-addr.arpa | 213.188.209.0/24 | 1 | 2026-10-16 |
| 211.248.149.in-addr.arpa | 149.248.211.0/24 | 1 | 2026-10-16 |
| 3.16.37.in-addr.arpa | 37.16.3.0/24 | 1 | 2026-10-16 |
| 32.66.137.in-addr.arpa | 137.66.32.0/24 | 1 | 2026-10-16 |
| 33.66.137.in-addr.arpa | 137.66.33.0/24 | 1 | 2026-10-16 |
| 35.66.137.in-addr.arpa | 137.66.35.0/24 | 1 | 2026-10-16 |
| 4.16.37.in-addr.arpa | 37.16.4.0/24 | 1 | 2026-10-16 |
| 78.10.204.in-addr.arpa | 204.10.78.0/24 | 1 | 2026-10-16 |
| 87.220.168.in-addr.arpa | 168.220.87.0/24 | 1 | 2026-10-16 |
| 91.220.168.in-addr.arpa | 168.220.91.0/24 | 1 | 2026-10-02 |
| 94.220.168.in-addr.arpa | 168.220.94.0/24 | 1 | 2026-10-16 |
in-addr.arpa / ip6.arpa zones delegated to ns2.flydns.net, found from the SOA of the reverse name of each IPv4 /24 behind the zone's websites (and any CIDR page viewed), so the zone is the real delegation point, at whatever prefix length it sits. A /24 whose reverse delegation is broken (SERVFAIL) is not credited to anyone.
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