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Connecting to Google PageSpeed…
This takes 15–30 seconds — running mobile & desktop in parallel
PageSpeed

PageSpeed & Core Web Vitals

Performance, Accessibility, Best Practices & SEO scores — mobile and desktop, in one test.

Performance score
Accessibility score
Best Practices score
SEO score
Mobile & desktop
Core Web Vitals

Four scores. One test. Mobile & Desktop.

Enter any URL to run a full Google Lighthouse audit — Performance, Accessibility, Best Practices, and SEO — for both mobile and desktop in parallel.

Core Web Vitals

LCP, CLS, TBT, FCP, TTI, and TTFB — all 7 key performance metrics with pass/warn/fail colour coding.

Top Opportunities

Ranked list of improvements with estimated time savings — eliminate render-blocking resources, compress images, reduce unused CSS/JS.

Page Snapshot

See a screenshot of your page as Google captured it during the test, alongside total page weight and request count.

Slow score? Fast hosting makes the difference.

UnderHost Nginx servers, built-in caching, cPanel Redis Manager and CDN integration are proven to dramatically improve PageSpeed scores for WordPress sites.

Tool guide

How to read PageSpeed and Core Web Vitals

PageSpeed scores combine lab measurements and Lighthouse audits to highlight performance, accessibility, best-practice, and SEO opportunities.

What this tool does

It runs Google PageSpeed Insights checks for mobile and desktop and reports Core Web Vitals and top opportunities.

Who it helps

  • Website owners improving conversions
  • Developers optimizing front-end delivery
  • Hosting users checking cache and server performance

Usage instructions

Enter a URL and compare mobile and desktop results. Prioritize real user impact: LCP, CLS, blocking scripts, images, cache, and server response.

Understanding the output

Scores are directional. A low score helps prioritize work, while individual audits show whether the issue is hosting, theme code, images, scripts, or third-party resources.

Why it matters for hosting

Fast hosting, caching, compression, PHP tuning, image optimization, and CDN configuration all influence performance outcomes.