A cookie is a small piece of text sent to your browser by a website you visit. It helps the site remember information about your visit, which can make it easier to visit the site again and make the site more useful to you.
To manage how cookies are used, you can refuse the use of certain cookies through your Google personalization settings anytime by visiting g.co/privacytools. You can also manage cookies in your browser (though browsers for mobile devices may not offer this visibility). For example, if you use Google Chrome as your browser, you can visit chrome://settings/cookies.
Most browsers allow you to manage how cookies are set and used as you’re browsing, and to clear cookies and browsing data. Also, your browser may have settings allowing you to manage cookies on a site-by-site basis. For example, Google Chrome’s settings allow you to delete existing cookies, allow or block all cookies, and set cookie preferences for websites. Google Chrome also has Incognito mode, which doesn’t store your Chrome history of visited sites or cookies on your device after you close all Incognito windows.