Free Core Web Vitals Quick Check
Get fast feedback on page weight and common performance anti-patterns that affect Google’s Core Web Vitals metrics.
Common use cases
- Quickly flag oversized pages before a full Lighthouse audit.
- Check for missing preload, defer, and lazy-loading hints.
- Compare before/after performance during optimization work.
Frequently asked questions
Is this the same as PageSpeed Insights?
No. This is a fast static analysis. For real user metrics and lab data use Lighthouse or the official PageSpeed Insights API.