Live public data · No account required

Core Web Vitals and PageSpeed Checker

Run a Google PageSpeed Insights audit and review Lighthouse performance plus available real-user Core Web Vitals.

Enter lookup details

Submitting sends these values through this site to the named public data provider. Providers may process requests under their own policies; this site does not keep a lookup history.

Data provided by Google PageSpeed Insights. Provider availability and data coverage can vary.

How to use Core Web Vitals and PageSpeed Checker

  1. Enter the place, identifier or domain to look up.
  2. Select the lookup button to request current public data.
  3. Review the result and its source details.

About core web vitals and pagespeed checker

Submits the URL to Google PageSpeed Insights and returns Lighthouse metrics and any available Chrome UX Report field data. Audits can take several seconds; quota and availability depend on Google. A GOOGLE_PAGESPEED_API_KEY environment variable is recommended for a production deployment.

Source and freshness

This tool queries the named public data provider when you submit. Availability, freshness, coverage and request limits depend on that provider; no lookup history is saved by this site.

How do I check Core Web Vitals for a page?

Submits the URL to Google PageSpeed Insights and returns Lighthouse metrics and any available Chrome UX Report field data. Audits can take several seconds; quota and availability depend on Google. A GOOGLE_PAGESPEED_API_KEY environment variable is recommended for a production deployment.

Is input uploaded?

Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.

Related tools and guides

Official reference

Browse all developer tools