We measure visitors to our websites and products using Google Analytics. This service records what pages you view within our site, how you arrived at our site and some basic information about your computer. We anonymize the data in Google Analytics, so we don't know who you are; just that somebody visited our site. The information we collect helps us understand what parts of our sites are doing well, how people arrive at our site and so on. Like most websites, we use this information to make our website better. You can learn more about Google Analytics or opt out if you wish. Google Analytics data is automatically deleted 26 months after your last visit.