In the Viewer, open the top-right menu, then click Save as Gist. ![]() ![]() The report opens in the Viewer, located at. (If already on the viewer, skip this step) Open the top-right menu, then click Open In Viewer.To export a report as a gist from the report: One benefit of gists is free version control. If you don't want to manually pass around JSON files, you can also share your reports as secret GitHub gists. Drag the JSON file onto the viewer, or click anywhere in the Viewer to open your file navigator and select the file.Open the top-right menu and click Save as JSON The list below explains how to get the JSON output, depending on what Lighthouse workflow you're using: The Lighthouse Viewer needs the JSON output of a Lighthouse report. Use the Lighthouse Viewer to view and share reports online. Lighthouse runs its audits against the currently-focused page, then opens up a new tab with a report of the results. After clicking, the Lighthouse menu expands.Ĭlick Generate report. If not, open Chrome's extension menu and access it from there. It should be next to the Chrome address bar. In Chrome, go to the page you want to audit.Ĭlick the Lighthouse.Install the Lighthouse Chrome Extension from the Chrome Webstore.The DevTools workflow allows for testing local sites and authenticated pages, while the extension does not. Run Lighthouse as a Chrome Extension Caution: Unless you have a specific reason, you should use the Chrome DevTools workflow rather than this Chrome Extension workflow. See Using programmatically for an example of running Lighthouse programmatically, as a Node module. The -g flag installs it as a global module. Install the current Long-Term Support version of Node.Install and run the Node command line tool After 30 to 60 seconds, Lighthouse gives you a report on the page. DevTools shows you a list of audit categories. To the right is the Lighthouse panel of Chrome DevTools, which is powered by LighthouseĬlick Analyze page load. To the left is the viewport of the page that will be audited. In Google Chrome, go to the URL you want to audit.Lighthouse has its own panel in Chrome DevTools. Note: The CLI and Node workflows require you to have an instance of Google Chrome installed on your machine. Run Lighthouse and link to reports without installing a thing. ![]() Integrate Lighthouse into your continuous integration systems. Automate your Lighthouse runs via shell scripts. Easily audit pages that require authentication, and read your reports in a user-friendly format. Get startedĬhoose the Lighthouse workflow that suits you best: You can also use Lighthouse CI to prevent regressions on your sites.Ĭheck out the video below from Google I/O to learn more about how to use and contribute to Lighthouse. ![]() The audit is important, as well as how to fix it. Each audit has a reference doc explaining why From there, use the failing audits as indicators on how to improve the page. You give Lighthouse a URL to audit, it runs a series of audits against the page,Īnd then it generates a report on how well the page did. You can run Lighthouse in Chrome DevTools, from the command line, or as a Node module. It has audits for performance, accessibility, progressive web apps, SEO, and more. You can run it against any web page, public or requiring authentication. Lighthouse is an open-source, automated tool for improving the quality of web pages.
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