JavaScript Required

This site requires JavaScript, as well as the ability to pull in cross-site scripts, in order to perform the testing.

If this message does not go away, it means that JavaScript has been disabled, either by a plugin or extension in your browser, or by explicit browser setting.

Do you use NoScript?

If you use this Firefox add-on, you'll need to "Temporarily allow all this page". You will need to do this twice for everything to work. Alternately, disable NoScript entirely until you are done with this site.

You can opt instead to view the simple test, which will give you a quick pass/fail for IPv4, IPv4+IPv6, and IPv6. It will however offer little diagnostic information.