Post looks at how to use performance.timing vars from the dev console to send additional page load time data to Google Analytics. This method works for regular HTML pages with full round trip
All tagged google pagespeed insights
How To Find Out Your Entire Website's PageSpeed Insights Score Using Screaming Frog Crawler
Learn how to use Screaming Frog to bulk crawl all website pages and pull PageSpeed Insights for your entire website. This method provides Mobile score, Desktop score, FCP and DCL metrics by using Custom > Extraction method in SF.