Our cookies contain no personally identifiable information.!! When do we send cookies to a browser? We send a cookie to the browser after any impression, click, or other activity that results in a call to our Ad server. If the browser accepts the cookie, the cookie is stored on the browser. Most commonly, We send a cookie to the browser when a user visits a page that shows our ads. Pages with our ads include ad tags that instruct browsers to request ad content from our ad server. When the server delivers the ad content, it also sends a cookie.