How does websites use cookies?
There are many reasons why a website might use cookies; however, most use them to collect demographic information about their visitors. They examine how long you stayed on their website, how often you come, and which of their pages you looked at while you were there. They can use this to help refine their marketing strategies to match the preferences of the visitors. For instance, if a certain page gets most of the site traffic, then they may try to update that page more frequently, or put more advertising on it.