But those IPv6 address aren't actually working, unlike the IPv4 ones. Also those addresses are owned by Telia, so I have my suspicions that those are the go-live ipv6 addresses
For IPv6: 2001:2001::,2001:2001:2001::
the SAN for their SSL says
IP Address:2606:4700:4700:0:0:0:0:1111
IP Address:2606:4700:4700:0:0:0:0:1001
From the cached page:
Replace those addresses with the Cloudflare DNS addresses:
For IPv4: 1.1.1.1 and/or 1.0.0.1
For IPv6: 2001:2001:: and/or 2001:2001:2001::