Every .dk domain whose website address (A record) is announced by AS24971, 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 AS24971, counted once a day.
AS24971 is announced by MasterDC s.r.o. (Czechia) and currently hosts 21 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 19 unique IPv4 addresses on this network, and the domains currently sit in 10 IPv4 CIDR blocks covering roughly 34.8 thousand addresses of IPv4 space.
IPv6 is live here too: 1 domain (4.8%) publish AAAA records from this AS, resolving to 2 unique IPv6 addresses across 1 prefix (about 33.6 million /64 networks of space).
The network is part of the .dk zone's infrastructure too: 11 distinct nameservers and 17 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.
On the security side, 7 of the domains hosted here (33.3%) validate as DNSSEC-secure — below 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.
MasterDC s.r.o. announces 46 prefixes (33 IPv4, 13 IPv6) and reaches the internet through 10 upstream networks.
Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.
| CIDR | Domains |
|---|---|
| 83.167.224.0/19 | 6 |
| 81.31.32.0/20 | 4 |
| 185.25.184.0/22 | 3 |
| 178.238.32.0/20 | 2 |
| 2a01:430:200:0:0:0:0:0/39 | 2 |
| 185.8.164.0/22 | 1 |
| 194.145.180.0/22 | 1 |
| 80.79.16.0/20 | 1 |
| 185.239.216.0/22 | 1 |
| 89.185.224.0/19 | 1 |
| 37.205.8.0/21 | 1 |
| Hostname | Domains |
|---|---|
| ns.vas-hosting.eu | 7 |
| ns1.netio.cz | 3 |
| ns.aceit.cz | 2 |
| ns2.aceit.cz | 2 |
| ns3.aceit.cz | 2 |
| ns.bcom.cz | 2 |
| ns1.exmasters.com | 2 |
| ns2.exmasters.com | 2 |
| ns2.jzstudio.cz | 1 |
| ns2.magichouse.eu | 1 |
| ns1.etn.cz | 1 |