We and our third-party service providers also use clear GIFs in HTML e-mails to our customers, to help us track e-mail response rates, identify when our e-mails are viewed, and track whether our e-mails are forwarded. </p> <p> <strong>Third-Party Analytics. </strong> We use automated devices and applications, such as Google Analytics, to evaluate usage of our Site, and to the extent permitted, our Apps.