When you promoting affiliaite program using blackhat, you may use shorturl services to hide your referral link. then visitor cant see your referral id. But when he wants to report you, i think he can discover it. For example here is hostgator link: http://secure.hostgator.com/~affiliat/cgi-bin/affiliates/clickthru.cgi?id=hostgator And here it is over TinyURL masked: http://************/nowitshidden (add TinyURL dot com instead of ***) But i think there are ways to analyse such redirects and get the id? Probably end is that cookie with aff. id is saved and such a thing canot be hidden right?