Adding hidden link in the email to detect bot activity

Hi,

We are trying to detect email bot clicks (email security servers) that click on all the links on the email to ensure that they are safe to pass through to the user's inbox. Because of these bot clicks, the email open rates, clickthrough rate get inflated. We, therefore, are thinking of embedding a hidden link(link is the same color as the background so that it is not visible) in the footer that directs to a Bot-Check page. So, If we get clicks on this link, we can be sure that it is actually bots clicking and not actual humans. Have