Introduction to Lighthouse  | Chrome for Developers
Lighthouse is an open-source, automated tool to help you improve the quality of web pages. You can run it on any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO, and more. You can run Lighthouse in Chrome DevTools, from the command line, or as a Node module. Give Lighthouse a URL to audit, it runs a series of audits against the
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Remote TestKit
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responsivepx - find that tricky breakpoint
About responsivepx Enter the url to your site - local or online: both work - and use the controls to adjust the width and height of your viewport to find exact breakpoint widths in pixels. Then use that information in your media queries to create a responsive design. Watch the video explaining usage and why it was built. If your site appears with scrollbars, make sure to check the scrollbar visibl
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