Lighthouse

software

★★★★½4.4(543 reviews)

About

Open-source automated auditing tool from Google that scores web pages on performance, accessibility, SEO, best practices, and PWA compliance via DevTools, CLI, or CI.

Overview

Lighthouse is Google's reference tool for web quality auditing and the backbone of PageSpeed Insights. It is essential for any team optimizing Core Web Vitals or preparing for search ranking improvements. Its main limitation is score variance across runs and the difficulty of auditing pages that require login, though tools like Puppeteer can partially address the latter.

auditing performance accessibility seo developer-tools

Pros

+Free, authoritative, and deeply integrated into Chrome DevTools
+Actionable, prioritized recommendations with reference documentation

Cons

-Scores can vary between runs due to network and CPU variability
-Audit coverage limited to front-end; cannot test authenticated flows easily

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Details

Founded2016

Typesoftware

Pricing

Model

free

Platforms

web

Community

Listed in Stacks

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