Google launched a preview of its PageSpeed Insights Chrome Developer Tools extension last year, but it just released version 2.0 today.

The add-on analyzes web page performance and offers specific suggestions on how to make them load faster. Google Software Engineers Libo Song and Bryan McQuade gave an example on the Official Developers Blog:

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.

PageSpeed Insights also runs the open-source PageSpeed Insights SDK securely to optimize images, CSS, JavaScript and HTML resources on a website. The PageSpeed Insights extension is available now on the Chrome Web Store.

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