Hm...well, there are a few ways. What you could do is use an automated crawler with a Y|N function to tell you if it's being tracked. For example, when a user submits a website, your engine would send an automated message to the server and detect how much, if any of the information were stored, and then track it to see how it's used. If you've got the tech to do this, it would eliminate a huge amount of false positives and false negatives that the privacy policy's rhetoric generates. But that's just my suggestion.