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What Is Google PageSpeed Insights (PSI)? — Wiki
Google PageSpeed Insights is designed to help improve user experience by providing insight into how quickly pages load and what elements of a page may be slowing it down.. Google PageSpeed Insights (PSI)
What Is Google Lighthouse? — Wiki
Google Lighthouse is an open-source tool built by Google to help developers measures the performance and standard of their web pages. . Google Lighthouse offers insights into how a page is performing on different devices and browsers.