In Pretty Links, set your redirect type to Meta Refresh oder Javascript to replace the original referrer with the pretty link URL. See Verstehen von Umleitungsarten Weitere Informationen.
Wenn der Link also auf einer Seite eingebettet war wie https://www.coolforums.com/topic1/thread0/, the referrer would not be shown as that URL, but as the Pretty Link URL (http://yoursite.com/xyz) statt.
To further wipe out the referrer, add this to the scripts section of your link, or to the global scripts section:
<meta name="referrer" content="no-referrer" />Most modern browsers support that and will not pass along the referrer at all.
Wenn Sie weiterhin Probleme damit haben, senden Sie uns bitte eine Support-Ticket.