SEO & Web ToolsFree

Website Speed Checker

Check your website's performance score using the Google PageSpeed Insights API. Get scores for Performance, Accessibility, Best Practices, and SEO — the four Lighthouse audit categories. See Core Web Vitals (LCP, FID, CLS) and actionable improvement suggestions.

🌐 API Integration Required

This tool needs a backend API to check external URLs. Options:

  • Use a serverless function (Next.js API route)
  • Integrate with RapidAPI URL checker APIs
  • Use PageSpeed Insights API (for speed checker)

Frequently Asked Questions

What scores does the website speed checker show?▼
Performance, Accessibility, Best Practices, and SEO — the four Google Lighthouse audit categories. Each is scored 0-100, with 90+ being considered good.
What are Core Web Vitals?▼
Core Web Vitals are Google's three key performance metrics: LCP (Largest Contentful Paint — loading speed), FID/INP (interaction responsiveness), and CLS (Cumulative Layout Shift — visual stability). Google uses these as ranking signals.
What is a good PageSpeed score?▼
90-100 is excellent, 50-89 is average and needs improvement, 0-49 is poor. Google considers 90+ scores to be 'Good' for each category.
Is this using Google's official PageSpeed API?▼
Yes. The tool calls the public PageSpeed Insights API, which runs the same Lighthouse analysis Google uses to evaluate pages for Core Web Vitals.
How can I improve my website's PageSpeed score?▼
Common improvements include: compressing images to WebP, enabling browser caching, minifying CSS/JS, reducing server response time (TTFB), eliminating render-blocking resources, and using a CDN.