- http://www.appelboor.com/ipv6.html hard core IPv6-test site, no frills, links to a nice iGoogle Gadget "IPv6 Checker"
- http://test-ipv6.com/ beautiful IPv6-test site which does see Teredo IPv6 connectivity on Windows Vista and Windows 7, but strangely enough awards 0 points for that
- http://ipv6-test.com/ beautiful IPv6-test site, including a speed test, but does not see any Teredo IPv6 connectivity on Windows Vista and Windows 7
- iGoogle Gadget "IPv6 Checker" is here : runs embedded in your iGoogle (www.google.com/ig). Shows details about your IPv6, including Teredo and name resolving