I built and coded my own x86 router, using OpenBSD (which is currently on v7.0). It runs pf firewall, dhcpleased, dhcpd and unbound, alongside other niceties such as httpd, WireGuard, sshguard and so on. The DNS daemon (hardened unbound) forwards LAN queries upstream using DNS over TLS to my custom off-prem ad/tracker/malware blocking DNS server. That DNS server runs on an aarch64 VPS at Oracle and supplies me with clean, private DNSSEC-validated, QNAME minimised and case randomised DoH/DoT/DoQ/DNSCryptv2 DNS.
Lately, flicking through the DNS server stats, I've noticed hundreds of requests per day hitting the domain da.virginmedia.com and I wondered if anyone knows what it's for? I couldn't find anything in VM's (admittedly barebones and dumbed down) documentation, or through search engines. Shodan/Netcraft/the usual tools weren't very helpful either. Just curious as I've never seen it before and one of the VM devices on the LAN is pinging that domain a lot.
We have Gig1, TiVO v6 (x2), a VM mobile SIM and phone if that's any relevance.