nslookup archive.is 1.1.1.1
Server: 1.1.1.1
Address: 1.1.1.1#53
Non-authoritative answer:
Name: archive.is
Address: 134.119.220.26https://www.dnsleaktest.com/what-is-transparent-dns-proxy.ht...
A few days ago it was a customers compromised router doing it.