This page lists every .dk domain whose delegation includes the nameserver ns1.fv.fi, 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 |
|---|---|---|---|
| 55.178.in-addr.arpa | 178.55.0.0/16 | 2 | 2026-10-16 |
| 0.102.83.in-addr.arpa | 83.102.0.0/24 | 1 | 2026-10-14 |
| 0.23.85.in-addr.arpa | 85.23.0.0/24 | 1 | 2026-10-12 |
| 0.92.87.in-addr.arpa | 87.92.0.0/24 | 1 | 2026-10-12 |
| 128.50.212.in-addr.arpa | 212.50.128.0/24 | 1 | 2026-10-13 |
| 147.50.212.in-addr.arpa | 212.50.147.0/24 | 1 | 2026-10-16 |
| 205.23.85.in-addr.arpa | 85.23.205.0/24 | 1 | 2026-10-16 |
| 219.37.in-addr.arpa | 37.219.0.0/16 | 1 | 2026-10-02 |
| 231.183.62.in-addr.arpa | 62.183.231.0/24 | 1 | 2026-10-16 |
| 69.102.83.in-addr.arpa | 83.102.69.0/24 | 1 | 2026-10-16 |
| 79.94.87.in-addr.arpa | 87.94.79.0/24 | 1 | 2026-10-16 |
in-addr.arpa / ip6.arpa zones delegated to ns1.fv.fi, 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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