Analyze Core Web Vitals and your website’s speed with Google PageSpeed.

Key API info

Official links

• Developer documentation

Base endpoint

https://www.googleapis.com/pagespeedonline/

Popular endpoints

/pagespeedonline/v5/runPagespeed

Authentication

Anonymous access is permitted, but heavily rate-limited. Pass an API key in the key parameter for best results.

Rate limits

25,000 requests/day