Website Performance Analyzer
Run Google PageSpeed Insights for mobile or desktop. Lab scores, field metrics when Google has them, and exportable opportunities.
How to use
- Enter a public HTTPS URL and choose mobile or desktop.
- Run Analyze. Review scores, Core Web Vitals, and opportunities.
- Export JSON when you need a snapshot for a ticket.
Examples
Landing page
Compare mobile lab LCP after an image optimization.
New domain
A site without CrUX history still returns lab Lighthouse data; field metrics stay unavailable.
Google quota and rate limits apply. Not a substitute for local Lighthouse in CI. Private hosts are blocked.
FAQ
- Lab vs field?
- Lab is a simulated Lighthouse run. Field is Chrome UX Report data from real users when available.
- Do I need an API key?
- Optional. Set PAGESPEED_API_KEY for higher quota. Unkeyed requests use Google’s shared limit.