Try the following:
$ nslookup github.com
[...]
Non-authoritative answer:
Name: github.com
Address: 140.82.121.3
See also the completely ignored post in their forums.
10 points
*
I had a very small cheap ISP in France (Quantic Telecom) and they didn’t even monitor their network for ipv6 issues. I had to report problems myself every other week. They had less than 90% uptime in 2023, so I ended up getting a refund
9 points