Core Web Vitals Checker
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About Core Web Vitals Checker
The Core Web Vitals Checker by SeoPro.Tools analyzes your website's real-world performance across both mobile and desktop devices. Powered by Google's PageSpeed Insights API, it measures the three essential Core Web Vitals metrics — Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS) — that directly impact your search rankings and user experience.
Why Use the Core Web Vitals Checker?
- Instantly identify performance bottlenecks slowing down your pages
- Get actionable recommendations to improve LCP, INP, and CLS scores
- Analyze both mobile and desktop performance in one report
- Understand how Google evaluates your site for ranking signals
- Completely free — no account or installation required
Using it is simple: enter your website URL, select mobile or desktop (or both), and click Analyze. Within seconds, SeoPro.Tools delivers a full performance breakdown with prioritized fixes.
This tool is ideal for SEO professionals, web developers, digital marketers, and site owners who want to boost page speed, pass Google's Core Web Vitals assessment, and deliver a faster, smoother experience to every visitor.