Fastmail Pty Ltd (United States) currently hosts 146 .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 provider's networks, and the domains currently sit in 1 IPv4 CIDR block covering roughly 256 addresses of IPv4 space.

We have yet to observe any IPv6 (AAAA) hosting at this provider.

On the security side, 3 of the domains hosted here (2.1%) validate as DNSSEC-secure — below the zone-wide average of 62.8%. See how this provider's networks compare on the ASN statistics page, or drill into the CIDR list below the results.