Page Speed Check
See how one public page performs on mobile and desktop, whether real-user Core Web Vitals are available, and what to fix first.
Free · no registration · one public page per report
Lab performance
Separate Lighthouse measurements for mobile and desktop.
Real-user data
Core Web Vitals from Chrome UX data when the page or origin has enough traffic.
Practical priorities
A short, evidence-backed list of the improvements likely to matter most.
Privacy and measurement
Reports are private until you explicitly publish them. The submitted URL is sent to Google PageSpeed Insights for measurement. Scores naturally vary between runs, so use metrics and recommendations as evidence rather than a permanent grade.