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    Tools & Data Sources · Glossary

    Google Lighthouse

    Matt SuffolettoWritten by Matt Suffoletto
    Published June 26, 2026
    Google Lighthouse
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    TL;DR

    Google Lighthouse is an open-source automated tool, available in Chrome DevTools and as a CLI, that audits a page in a controlled lab environment and produces scores for Performance, Accessibility, Best Practices, and SEO.

    What is Google Lighthouse?

    Google Lighthouse is an open-source automated tool, available in Chrome DevTools and as a CLI, that audits a page in a controlled lab environment and produces scores for Performance, Accessibility, Best Practices, and SEO.

    Learn more in our Lighthouse scoring explained guide, or work with us through our done-for-you speed optimization service.

    How Google Lighthouse is Measured

    Lighthouse is run from the DevTools Lighthouse panel, the lighthouse npm CLI, or PageSpeed Insights.

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