IPv4 or IPv6: http://4or6.com/
IPv6 Test: http://test-ipv6.com/
Hurricane Electric IPv6: https://ipv6.he.net/
- Route Server (telnet): telnet://route-server.he.net/
IPv6 domain readiness tester: http://ip6.nl/
https://test-ipv6.vyncke.org/
希望世间永无欺骗
IPv4 or IPv6: http://4or6.com/
IPv6 Test: http://test-ipv6.com/
Hurricane Electric IPv6: https://ipv6.he.net/
IPv6 domain readiness tester: http://ip6.nl/
https://test-ipv6.vyncke.org/