A cookie is a small piece of data that is sent by a website to a user’s web browser while visiting a site. Web browser saves this data to be able to load websites faster if visiting again on the same website.
Thus - it also works the other way around. Cookies collected to web browser contains information about the user. When the user visits any site, the cookie is sent by the browser to the site making it possible for the site to collect information of the user’s previous activity, for example last visited websites.
While visiting this site, it is assured that cookies are not collected for any kind of use.