said by corster:
If you do a tracert, you can see that using the Unblock-US service, only the websites on their list redirect through their proxy, any other website is resolved as normal.
Would there be a way to find out what sites are redirected and which aren't?
I still don't trust them... but then again I wouldn't trust any 3rd party. How much can be ascertained through dns? Only which sites are visited?