I know that cookies stay for 90 days or longer, but if someone clicked at my hoplink but didn't buy the product, and then he go to an other site an click on the same product/ad, and bought the product. Who made the sale than me or the other guy. And what if he clicked on my hoplink, but didn't bought it. And then he clicked on the same ad on a different website but also didn't bought. If he goes than straight to the products webste who made than the sale?