Referer source in Pretty Links Lite?

Hi all.

I want to join a certain product’s affilaite program. Their T&C’s state that i can only use my website for traffic, no social media for example.

If i use pretty links to shorten my aff link, what will the source referer be if i post the pretty link on facebook? Will the product owner see my website as referer or facebook as referer, because if i put the pretty link on facebook, facebook still show the product as preview.

I can’t seemed to find anything specific about that.

Thanks