The latest #IPv6 analysis from the Common Crawl Foundation shows that a #AAAA record does not guarantee real IPv6 reachability. There is still a noticeable gap between announcing IPv6 support in #DNS and actually providing a working service over IPv6: https://commoncrawl.github.io/ipv6-analysis/
1.2%
That's bad, but probably true.
E.g. https://digital.bund.de/ is still broken.

