No Synthetic Browsers
Get data directly from your visitors, instead of relying on synthetic tests performed by fast servers. Collect data from different browsers, countries, operating systems, and pages of your site. Test your whole website, not just selected features.
Get data about loading phases, such as DNS resolving, receiving, waiting and rendering times. Use that data to improve your site loading time. Find out if you need a Content Delivery Network (for example, in cases where your website loads slowly for visitors from other continents).