About PageSpeed Insights

用此工具來紀錄每次網站更新後的測試數據，對於調整Web Performance 來說是一個可以參考的指標。如果API 使用量很大，請記得申請Google API Key。

This essential Chrome extension allows you to quickly measure the speed of any website on both desktop and mobile devices.

In this guide, learn how to use PSI to extract insights from CrUX and better understand the user experience.

PageSpeed Insights (PSI) reports on the user experience of a page on both mobile and desktop devices, and provides suggestions on how that page may be improved.

PageSpeed Insights for Google Chrome has been deprecated. Please use the online version of PageSpeed Insights.

Make your web pages fast on all devices ; More on PageSpeed InsightsWhat's newDocumentationLearn about Web PerformanceAsk questions on Stack OverflowMailing list. Optimize Cumulative Layout Shift · Optimize Largest Contentful... · Web Vital

讓網頁在所有裝置上都能快速載入. 立即查看. 最新消息 · 說明文件 · 瞭解網路效能. 前往PageSpeed Insights 查看更多資訊最新消息說明文件瞭解網路效能在Stack ...

PageSpeed Insights 是Google 所提供的網站SEO 檢測工具，透過這項工具不僅僅能夠檢測網站速度，還能夠幫助你了解網站是否有無其他SEO、使用者瀏覽體驗的缺失，並提供你改善的 ...

Your website doesn't work at desktop resolutions, it's a totally blank page. Lighthouse needs to see at least something on the screen to work, hence the error.

The new UI is aimed to be more intuitive and helps developers quickly discover lab and field performance insights for their pages.