A tracking pixel (also referred to as a clear gif, pixel tag or single pixel tag) is a graphic with dimensions of 1×1 pixels that is loaded when a user visits a website or opens an email. A pixel is used in conjunction with cookies to help us manage and monitor our online advertising and wider business arrangements with third parties, to measure and analyze site usage and activity and to improve the quality of the Service. In certain circumstances, we share IP addresses that are captured by pixels to help our advertisers analyze the efficacy of their campaigns.