AS39921 is announced by Rackspace Ltd. (Germany) and currently hosts 2 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 2 unique IPv4 addresses on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 16.4 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: no 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 (50.0%) 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.