PageSpeed Insights
https://developers.google.com/speed/pagespeed/insights/
PageSpeed Insights について | PageSpeed Insights | Google Developers
https://developers.google.com/speed/docs/insights/about?hl=ja
最近はウェブ系アプリ中心、あとWindowsアプリちょっと
PageSpeed Insights
https://developers.google.com/speed/pagespeed/insights/
PageSpeed Insights について | PageSpeed Insights | Google Developers
https://developers.google.com/speed/docs/insights/about?hl=ja