This page lists every .dk domain whose delegation includes the nameserver ptrdns4.registrar-servers.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.
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 |
|---|---|---|---|
| 112.64.192.in-addr.arpa | 192.64.112.0/24 | 1 | 2026-10-10 |
| 116.255.162.in-addr.arpa | 162.255.116.0/24 | 1 | 2026-10-04 |
| 118.255.162.in-addr.arpa | 162.255.118.0/24 | 1 | 2026-10-16 |
| 118.64.192.in-addr.arpa | 192.64.118.0/24 | 1 | 2026-10-16 |
| 119.255.162.in-addr.arpa | 162.255.119.0/24 | 1 | 2026-10-16 |
| 119.54.198.in-addr.arpa | 198.54.119.0/24 | 1 | 2026-10-16 |
| 120.65.68.in-addr.arpa | 68.65.120.0/24 | 1 | 2026-10-11 |
| 121.54.198.in-addr.arpa | 198.54.121.0/24 | 1 | 2026-10-16 |
| 121.65.68.in-addr.arpa | 68.65.121.0/24 | 1 | 2026-10-16 |
| 122.65.68.in-addr.arpa | 68.65.122.0/24 | 1 | 2026-10-16 |
| 123.65.68.in-addr.arpa | 68.65.123.0/24 | 1 | 2026-10-16 |
| 128.29.66.in-addr.arpa | 66.29.128.0/24 | 1 | 2026-10-15 |
| 152.61.185.in-addr.arpa | 185.61.152.0/24 | 1 | 2026-10-16 |
| 153.61.185.in-addr.arpa | 185.61.153.0/24 | 1 | 2026-10-16 |
| 160.57.69.in-addr.arpa | 69.57.160.0/24 | 1 | 2026-10-09 |
| 205.188.199.in-addr.arpa | 199.188.205.0/24 | 1 | 2026-10-16 |
| 208.0.162.in-addr.arpa | 162.0.208.0/24 | 1 | 2026-10-16 |
| 248.213.162.in-addr.arpa | 162.213.248.0/24 | 1 | 2026-10-05 |
| 248.219.104.in-addr.arpa | 104.219.248.0/24 | 1 | 2026-10-16 |
| 249.213.162.in-addr.arpa | 162.213.249.0/24 | 1 | 2026-10-16 |
| 250.219.104.in-addr.arpa | 104.219.250.0/24 | 1 | 2026-10-16 |
| 253.213.162.in-addr.arpa | 162.213.253.0/24 | 1 | 2026-10-16 |
| 255.213.162.in-addr.arpa | 162.213.255.0/24 | 1 | 2026-10-16 |
| 28.187.198.in-addr.arpa | 198.187.28.0/24 | 1 | 2026-10-07 |
| 32.161.203.in-addr.arpa | 203.161.32.0/24 | 1 | 2026-10-16 |
| 32.250.63.in-addr.arpa | 63.250.32.0/24 | 1 | 2026-10-16 |
| 36.250.63.in-addr.arpa | 63.250.36.0/24 | 1 | 2026-10-09 |
| 43.250.63.in-addr.arpa | 63.250.43.0/24 | 1 | 2026-10-16 |
in-addr.arpa / ip6.arpa zones delegated to ptrdns4.registrar-servers.com, 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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