This page lists every .dk domain whose delegation includes the nameserver rns2.upc.biz, 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 |
|---|---|---|---|
| 0.112.80.in-addr.arpa | 80.112.0.0/24 | 1 | 2026-10-18 |
| 0.120.217.in-addr.arpa | 217.120.0.0/24 | 1 | 2026-10-19 |
| 0.208.94.in-addr.arpa | 94.208.0.0/24 | 1 | 2026-10-24 |
| 0.24.84.in-addr.arpa | 84.24.0.0/24 | 1 | 2026-10-24 |
| 0.72.82.in-addr.arpa | 82.72.0.0/24 | 1 | 2026-10-22 |
| 108.213.94.in-addr.arpa | 94.213.108.0/24 | 1 | 2026-10-23 |
| 128.217.82.in-addr.arpa | 82.217.128.0/24 | 1 | 2026-10-23 |
| 132.123.217.in-addr.arpa | 217.123.132.0/24 | 1 | 2026-10-23 |
| 140.217.82.in-addr.arpa | 82.217.140.0/24 | 1 | 2026-10-23 |
| 65.74.82.in-addr.arpa | 82.74.65.0/24 | 1 | 2026-10-23 |
| 72.26.84.in-addr.arpa | 84.26.72.0/24 | 1 | 2026-10-23 |
in-addr.arpa / ip6.arpa zones delegated to rns2.upc.biz, 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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