Because these cookies are necessary to the security and functionality of our services, they cannot be switched off. </p> <p> <strong>Measurement and performance</strong> </p> <p> Measurement and performance cookies (and similar technologies) – including Google Analytics– allow us to measure how many people have used the Services, and which sections of it are visited most frequently. These cookies also allow us to monitor service performance, such as error messages and how much time it takes for pages and videos to load.