Cookies are uniquely assigned to you, and can typically only be read by a web server in the domain that issued the cookie to you. One of the primary purposes of cookies is to provide a convenience feature to save you time. The purpose of a cookie is to tell the Web server that you have returned to a specific site or page. WebMagic uses cookies to allow you to log in and stay logged into our sites, to store user preferences, to track trends, to troubleshoot customer support issues, to provide customized content and search results, and to otherwise create and provide the highest quality of services we can. On some of our sites, they are required for even basic functioning of the site to work. Additionally, for pages that contain advertising, our advertising partners (usually Yahoo or Google) may set their own browser cookies.