AS51191 is announced by Core-Backbone GmbH (Germany) and currently hosts 157 .dk domains 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 2 IPv4 CIDR blocks covering roughly 3.1 thousand addresses of IPv4 space.

IPv6 is live here too: 153 domains (97.5%) publish AAAA records from this AS, resolving to 2 unique IPv6 addresses across 1 prefix (about 65.5 thousand /64 networks of space).

The network is part of the .dk zone's infrastructure too: 3 distinct nameservers and 148 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 0 of the domains hosted here (0.0%) validate as DNSSEC-secure — below the zone-wide average of 62.8%. See how this AS compares on the ASN statistics page, or drill into the CIDR list below the results.