IPv4/IPv6 test page

This is a test page to see whether a client can connect over IPv4 or over IPv6, and what it prefers.

The main page is on a dual-stacked server, you are using legacy IP and your address is: 54.211.120.181


Here comes an iframe that is loaded from an IPv4-only-server:


Here comes an iframe that is loaded from an IPv6-only-server:


Here comes an iframe that is loaded from an IPv4-literal-only-server:


Here comes an iframe that is loaded from an IPv6-literal-only-server: