Free Website Speed Test
Test any website's speed and Core Web Vitals (LCP, CLS, INP) on mobile and desktop, and get clear, prioritized fixes — not just a number.
What this check analyzes
Core Web Vitals
LCP, CLS, and INP measured against Google's thresholds.
Mobile & desktop
Separate performance scores for both, where most issues hide.
Render-blocking & assets
Heavy images, fonts, and scripts slowing your first paint.
Prioritized fixes
The specific changes with the biggest speed payoff, ranked.
Every check runs a complete Webmatik audit — so alongside performance, you also get performance, SEO, GEO, conversion, retention, UX, accessibility, and security, all in one Growth Score.
Frequently asked questions
Is the speed test free?
Yes — run free website speed tests every month, no credit card required.
What are Core Web Vitals?
Core Web Vitals are Google's user-experience metrics: Largest Contentful Paint (loading), Cumulative Layout Shift (visual stability), and Interaction to Next Paint (responsiveness). They are a confirmed ranking signal.
Does it test mobile and desktop?
Yes. Webmatik reports performance for both mobile and desktop, since they often score very differently.
The test says my server response is slow — what do I do?
A slow server response (TTFB over 800ms) is a hosting-layer problem: no front-end plugin can fix it. Enable server-level caching first; if your host can't get under 800ms with caching on, the platform is the bottleneck. See our guide at webmatik.ai/learn/performance-hosting-ttfb for the full diagnosis checklist and when it's time to switch hosts.
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