With cookies, any Web site you visit can store and retrieve information on your computer. While this concept may be unnerving, 99.9 percent of all cookies are deployed to benefit the consumer. A standard method for rating the degree of privacy sacrificed by the consumer when a cookie is used is a good first step toward advancing Internet privacy. Cookies can be classified by their purpose and scope. Under purpose, there are site experience enhancers and behavioral trackers.
Enhancers are cookies that exist to enrich the consumer's visit to the site.
To qualify, the cookie must never record the consumer's behavior. Trackers may or may not enhance the site experience, but the functional purpose of a behavioral tracker is to monitor and record the consumer's actions. There are two types of behavioral tracking cookies. Intra Site cookies monitor and record consumer activity only at the site that delivered the cookie. Cross Site cookies can monitor and record consumer activity across a network of sites that are collectively using code to interact with that particular cookie.