I think they do track you or at least the programs has algorithms to do so, not sure if they send that information back though. Despite my settings that disable all the pop up that I can and opting out of the community function, once and while I get a Avast ad that is specific to the website I am visiting. For example just now, I visted the BBC and I got a Avast VPN ad for Bypass Content Restrictions, obviously to get around BBC geo restrictions on their content.