Web beacons are small strings of code that provide a method for delivering a display advertisement on a webpage for the purpose of transferring data, such as the IP (Internet Protocol) address of the device that downloaded the page on which the Web beacon appears, the URL (Uniform Resource Locator) of the page on which the Web beacon appears, the time the page containing the Web beacon was viewed, the types of browser that fetched the Web beacon and the identification number of any cookie on the device previously placed by that server.