IP check is a free and very thorough anonymity test. Here you may see at a glance if you have really activated anonymous surfing or if you are using anonymous proxy servers.
I did pretty good....I got a couple bad entries like cookies.. I feel I have them secured good now (I have 3rd party cookies blocked) I got one medium entry.... (It said I was using an uncommon language that might make me more recognisable)
I didnt understand it all but I think I did pretty good