This page lists every .dk domain whose delegation includes the nameserver rdns2.alidns.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 |
|---|---|---|---|
| 88.47.in-addr.arpa | 47.88.0.0/16 | 6 | 2026-10-16 |
| 254.47.in-addr.arpa | 47.254.0.0/16 | 5 | 2026-10-16 |
| 181.163.in-addr.arpa | 163.181.0.0/16 | 4 | 2026-10-16 |
| 209.8.in-addr.arpa | 8.209.0.0/16 | 3 | 2026-10-16 |
| 251.47.in-addr.arpa | 47.251.0.0/16 | 3 | 2026-10-16 |
| 102.155.in-addr.arpa | 155.102.0.0/16 | 2 | 2026-10-16 |
| 107.43.in-addr.arpa | 43.107.0.0/16 | 2 | 2026-10-16 |
| 217.8.in-addr.arpa | 8.217.0.0/16 | 2 | 2026-10-16 |
| 222.8.in-addr.arpa | 8.222.0.0/16 | 2 | 2026-10-16 |
| 252.47.in-addr.arpa | 47.252.0.0/16 | 2 | 2026-10-16 |
| 62.116.in-addr.arpa | 116.62.0.0/16 | 2 | 2026-10-15 |
| 75.47.in-addr.arpa | 47.75.0.0/16 | 2 | 2026-10-16 |
| 91.47.in-addr.arpa | 47.91.0.0/16 | 2 | 2026-10-16 |
| 104.43.in-addr.arpa | 43.104.0.0/16 | 1 | 2026-10-16 |
| 211.8.in-addr.arpa | 8.211.0.0/16 | 1 | 2026-10-16 |
| 218.8.in-addr.arpa | 8.218.0.0/16 | 1 | 2026-10-16 |
| 219.8.in-addr.arpa | 8.219.0.0/16 | 1 | 2026-10-16 |
| 220.8.in-addr.arpa | 8.220.0.0/16 | 1 | 2026-10-16 |
| 242.47.in-addr.arpa | 47.242.0.0/16 | 1 | 2026-10-09 |
| 74.47.in-addr.arpa | 47.74.0.0/16 | 1 | 2026-10-16 |
in-addr.arpa / ip6.arpa zones delegated to rdns2.alidns.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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