 Web Optimization. Chase Paymentech also may use cookies to track advertising leads and campaigns from banner advertisements, third party advertisement services and third party web optimization services. Chase Paymentech may hire third party companies to track and report performance of advertising and marketing campaigns to and from Chase Paymentech and third party web sites. These companies may also set cookies and use related technology, such as tracking pixels. Tracking pixels (also known as action tags, web beacons, or transparent GIF files) and other similar tracking technologies may be used to collect and store information about user visits, such as the user's anonymous cookie ID, page visits and duration, and the specific ad or link(s) that the user clicked on to visit the site. No personally identifiable information is stored on these cookies or web pixels. This user activity information is reported to us in the aggregate and is anonymous. We use this information in the aggregate to understand, for example, the effectiveness of our advertising and marketing. 