Also, we and our third-party service providers sometimes use "clear GIFs" in connection with cookies and other website functions and emails. Clear GIFs perform administrative functions (but without detracting from your online experience), including being used to perform statistical and administrative tasks such as measuring traffic on our Websites and Services pages, verifying advertising avenues and positioning images on the web, and allowing us to gauge the effectiveness of certain communications and email marketing campaigns by letting us know which marketing emails have been opened by you or other recipients.