For other browsers, please consult the documentation that your browser manufacturer provides.</p> Web beacons <p> Web beacons, also called tracking pixels, are tiny graphics with unique identifiers that allow us to track usage patterns, count users who have visited a particular page, advertising impressions and clicks (ad reactions), etc. Web beacons can only collect limited information, including a cookie number, time and date of a page view, and a description of the page on which the web beacon resides.