Can web sites tell that Im using the Internet Junkbuster?
With the default options the proxy doesn’t announce itself. Obvious indications such as Keep-Alive headers are deleted, but sites might notice that you can cancel cookies faster than any human could possibly click on a mouse. (If you want to provide a plausible explanation for this, change the User Agent header to a cookie-free or cookie-crunching browser). But when certain options are used they could figure out something’s going on, even if they’re not pushing cookies. If you use blocking they can tell from their logs that the graphics in their pages are not being requested selectively. The -y option explicitly announces to the server that a proxy is present, and sending them wafers is of course a dead giveaway.