Every .dk domain whose website address (A record) is announced by AS2603, with the network's IPv6 and DNSSEC adoption and its observed prefixes. An autonomous system is the routing identity of a hosting company or ISP. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.
Active .dk domains whose website address (A record) is announced by AS2603, counted once a day.
AS2603 is announced by NORDUnet (Denmark) and currently hosts 1 .dk domain in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 4 unique IPv4 addresses on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 4.1 thousand addresses of IPv4 space.
We have yet to observe any IPv6 (AAAA) hosting on this AS.
The network is part of the .dk zone's infrastructure too: 2 distinct nameservers and 1 distinct mail exchanger serving .dk domains currently resolve to addresses announced by this AS.
On the security side, 1 of the domains hosted here (100.0%) validate as DNSSEC-secure — well above the zone-wide average for domains with a web address, 70.5%. See how this AS compares on the ASN statistics page, or drill into the CIDR list below the results.
NORDUnet announces 12 prefixes (10 IPv4, 2 IPv6) and reaches the internet through 10 upstream networks.
Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.
| Network | Name | Domains | Power |
|---|---|---|---|
| AS21320 | GEANT_IAS_VRF GEANT Vereniging | — | |
| AS1653 | SUNET - Vetenskapsradet / SUNET | — | |
| AS8501 | PIONIER-AS Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | — | |
| AS1835 | FSKNET-DK - IDDQD-AS | 1,714 | |
| AS224 | UNINETT - Sikt - Kunnskapssektorens Tjenesteleverandor | — | |
| AS8674 | NETNOD-IX Netnod AB | — | |
| AS15474 | RHNET Rannsokna- og haskolanet Islands hf. | — | |
| AS20514 | QBRANCH Axians AB | — | |
| AS3301 | TELIANET-SWEDEN Telia Company AB | 141 | |
| AS48685 | OK-AS Opin Kerfi hf | — | |
| AS30818 | IS-ADVANIA-TRANSIT Advania Island ehf | — | |
| AS30880 | SpaceDump IT AB | — | |
| AS11537 | INTERNET2-RESEARCH-EDU - Internet2 | — |
Among the networks we hold ipbot.dk routing data for (the ones looked up on this site), so this is a sample of the AS's customers, not all of them.
| CIDR | Domains |
|---|---|
| 109.105.96.0/20 | 1 |
| Hostname | Domains |
|---|---|
| backup-server.nordu.net | 1 |
| server.nordu.net | 1 |
| Hostname | Domains |
|---|---|
| smtp-01.wayf.dk | 1 |