Test whether a web address, site, URL, or domain is IPv6 accessible. Tests for DNS AAAA records, IPv6-addressable nameservers, glue, IPv6 connectivity (port 80), and several other elements. https://Ready.chair6.net/?url=Luennemann.org%2Findex.php%3Fmod%3Dusers%26action%3Dview%26id%3D1016863