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TL;DR - Lighthouse
- Lighthouse is Google's tool for auditing web page performance and accessibility
- It scores pages on performance, SEO, accessibility, and best practices
- Completely free, built into Chrome DevTools
Pricing: Free plan available
Best for: Growing teams
Score: 79/100
Pros & Cons
Pros
- Google performance tool
- Free and open source
- Comprehensive audits
- CI/CD integration
- Industry standard
Cons
- Results vary
- Can be misleading
- Learning curve
- Score gaming possible
- Not real user data
Key Features
Performance auditingAccessibility checksSEO analysisBest practicesPWA testingOpen source
Pricing Plans
Most Popular
Free
Free
Built-in
- Performance audit
- Accessibility
- SEO
- PWA checks
About Lighthouse
By Toolradar Team·
Lighthouse audits web pages for performance, accessibility, and SEO. Google's tool for measuring what matters—the standard for web quality audits.
The metrics define web quality. The recommendations are actionable. The tool is free.
Web developers use Lighthouse because Google uses these metrics for search ranking.
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Lighthouse FAQ
Is Lighthouse free?
Completely free. Built into Chrome DevTools. Open source from Google.
What is Lighthouse?
Website performance audit tool. Measures speed, accessibility, SEO. Essential for web developers.
How to use Lighthouse?
Open Chrome DevTools, go to Lighthouse tab, run audit. Also available as CLI and API.
Source: developer.chrome.com