Cookies are a mechanism for browser software to remember something about a web site.
Cookies allow a site to personalize itself for you. For example, in an online shopping mall the web site could use Cookies to list the contents of your virtual shopping cart. In an online news service the web site could use Cookies to list which news categories you are interested in, and which ones you don't want to be bothered with. Also, Cookies enable a site to count individual visitors rather than mere page hits. In general, WebCrawler uses Cookies to make your search experience better.