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Libo

By Libo Song and Bryan McQuade,
PageSpeed Insights Team


A year ago, we released a preview of the PageSpeed Insights Chrome Developer Tools extension, which analyzes the performance of web pages and provides suggestions to make them faster. Today, we’re releasing version 2.0 of the PageSpeed Insights extension, available in the Chrome Web Store. PageSpeed Insights analyzes all aspects of a web page load and points out the specific things you can do to make your page faster. For instance, PageSpeed Insights can inform you about an expensive JavaScript call that blocks the renderer for too long, remind you about that new photo on the front page of your web site that you might have forgotten to resize or optimize, or recommend changing the way you load third-party content so it no longer blocks the page load.

PageSpeed Insights for Chrome is a Developer Tools extension that analyzes all aspects of the page load, including resources, network, DOM, and the timeline. If you're already familiar with the Developer Tools, you'll find that PageSpeed Insights integrates with a toolset you're already using.


Using technologies like Native Client, PageSpeed Insights is able to run the open-source PageSpeed Insights SDK securely and with the performance of native code. Leveraging the Insights SDK enables the Chrome extension to automatically optimize the images, CSS, JavaScript and HTML resources on your web page and provide versions of those resources that you can easily deploy on your website.

We hope you’ll give PageSpeed Insights for Chrome a try and start optimizing your web pages today. We’d love to hear from you, as always. Please try PageSpeed Insights for Chrome, and give us feedback on our mailing list with questions, comments, and new features you’d like to see.


Libo Song and Bryan McQuade are Software Engineers on the Google PageSpeed Insights Team in Cambridge, MA. They focus on developing tools to help site owners understand how to speed up their sites.

Posted by Ashleigh Rentz, Editor Emerita