WebPageTest (https://www.webpagetest.org/) is an online tool designed to help users analyze the performance of their websites. This platform offers detailed insights into page load times, optimization strategies, and other critical performance metrics. WebPageTest allows users to test websites from different locations around the world using a variety of real browsers and at different connection speeds, including mobile networks. It provides comprehensive reports that include resource loading waterfall charts, page speed optimization checks, and suggestions for improvements. WebPageTest is a valuable resource for developers, webmasters, and digital marketers who aim to enhance user experience and improve their site's responsiveness and efficiency.