This is what I found:
15. Besides cookies, what other methods do you use to track HopLinks?
Tracking HopLinks and affiliate credit with cookies is 100% accurate in the vast majority of cases. For some percentage of customers, however, cookies do not work for tracking. In these rare instances, customers either have cookies turned off in their browser, have utilized new browser security and/or privacy parameters, or have other software installed on their computer that prevents ClickBank from setting a cookie at all. We have developed a new technology that will accurately track HopLinks and award correct affiliate credit for most instances where cookies are not set. This new technology works hand-in-hand with our current cookie-tracking system to ensure proper credit is awarded to referring affiliates.
Just wondering if this is new or if this was just implemented?