Analyze Core Web Vitals, page load time, and get actionable fixes. Improve user experience and outrank slow competitors — completely free.

Google uses Core Web Vitals as a ranking factor. A slow website kills conversions and SEO. Our Website Speed Test gives you a complete breakdown of LCP, FID, CLS, and load time — plus prioritized fixes to accelerate your site.
From image optimization to server response, we pinpoint exactly what's slowing you down. No complex setup, no signup walls — just instant, actionable speed insights.

Comprehensive speed analysis, simple recommendations.
Measure LCP (Largest Contentful Paint), FID (First Input Delay), and CLS (Cumulative Layout Shift) against Google's thresholds.
See total load time, time to first byte (TTFB), and fully loaded duration. Compare against industry benchmarks.
Separate scores for mobile and desktop. See how your site performs across devices with real-world conditions.
Get prioritized fixes: compress images, eliminate render-blocking JS, leverage browser caching, and more.
Visual timeline of every asset load: scripts, stylesheets, images, and fonts. Spot slow requests instantly.
Compare your site speed against top competitors. See where you're lagging and what to improve.
Save test results and track speed improvements over time. Monitor the impact of optimization efforts.
Export detailed speed reports for clients or stakeholders. White-label ready with all metrics and recommendations.
Enter URL, get insights, optimize.
Paste your website address
Choose mobile or desktop simulation
We test Core Web Vitals & load time
View recommendations and download report


53% of visitors abandon sites that take over 3 seconds to load. Don't lose revenue.


More metrics, better insights, completely free.
Tests simulate actual device and network speeds for realistic metrics.
Core Web Vitals, Lighthouse scores, and Google PageSpeed Insights integration.
Test as many URLs as you want, anytime. No credits, no subscriptions.
| Feature | SEOScaleUp ✓ | Manual/Free Alt | Expensive Paid Tool ($99+) |
|---|---|---|---|
| Core Web Vitals (LCP/FID/CLS) | ✓ Full breakdown | ~ Partial | ✓ Yes |
| Mobile & Desktop analysis | ✓ Separate scores | ~ One device | ✓ Both |
| Actionable optimization tips | ✓ Prioritized fixes | ✗ Generic advice | ✓ Detailed |
| Waterfall chart | ✓ Visual timeline | ✗ No | ✓ Yes |
| Competitor benchmark | ✓ Included | ✗ Manual only | ~ Sometimes |
| Historical tracking | ✓ Save & compare | ✗ No | ✓ Yes |
| No signup required | ✓ Always free | ~ Often paywalled | ✗ Credit card |
| Export reports (PDF/CSV) | ✓ Unlimited | ✗ No | ~ Limited exports |
| API access | ✓ Free tier | ✗ No | ✓ Expensive |
Join 25,000+ site owners using SEOScaleUp to monitor Core Web Vitals and improve user experience.
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