Tracking sales from each page linked to your domain

[wingy]

I would like to offer the ability for other retailers to carry my POD items. But in order to do this i’ll need to be able to track that come from each retailer. My thinking it that i can set up a page for each retailer, but not have it linked to my main page. For example each retailers page links would look like this: www.mypage.com/retailername. So they would use my domain, but it wouldn’t be visible on my main page. Is it possible to see which sales come from different pages linked to your domain name? Is it possible to put a tracker on listings to see which link the completed sale came from?