Web Performance Tools
Audit and monitor site performance — from single-page Lighthouse scores to whole-site scans and lab testing.
alternatives (4)
★ Unlighthouse
Best for: Whole-site audits
Scans every page of your site and scores them — like Lighthouse, but with a whole-site view.
- +Crawls all pages
- +One report
- −Local run / CI setup
Lighthouse
Best for: Single-page audits
Google's open-source page-level audit for performance, accessibility, SEO, and best practices.
- +Built into Chrome
- +Comprehensive
- −One page at a time
PageSpeed Insights
Best for: Field + lab data
Lighthouse plus real-world Core Web Vitals field data from the Chrome UX Report.
- +Real-user data
- +No install
- −Single URL
WebPageTest
Best for: Deep diagnostics
Deep lab testing from real devices and locations, with filmstrips and waterfall analysis.
- +Real devices
- +Detailed waterfalls
- −Slower
- −more advanced
Compare
Tick the ones you want to compare
| Alternative | Scope | Type | Free tier |
|---|---|---|---|
| ★Unlighthouse | Whole site | CLI / crawler | Yes |
| Lighthouse | Single page | DevTools / CLI | Yes |
| PageSpeed Insights | Single page | Hosted | Yes |
| WebPageTest | Single page | Hosted lab | Yes |
Run npx unlighthouse --site <your-site> to score every page at once; use Lighthouse or
PageSpeed Insights for a single page (the latter adds real-user Core Web Vitals); and reach
for WebPageTest when you need deep, device-level diagnostics.