AS39790 is announced by Web4U s.r.o. (Czechia) and currently hosts 44 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 3 unique IPv4 addresses on this network, and the domains currently sit in 2 IPv4 CIDR blocks covering roughly 5.1 thousand addresses of IPv4 space.

IPv6 is live here too: 42 domains (95.5%) publish AAAA records from this AS, resolving to 1 unique IPv6 address across 1 prefix (about 4.3 billion /64 networks of space).

The network is part of the .dk zone's infrastructure too: 1 distinct nameserver and 2 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 1 of the domains hosted here (2.3%) 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.