Free Google Lighthouse & Core Web Vitals Engine

Website Speed Test & Core Web Vitals

Analyze your webpage load time, LCP, CLS, INP, and Mobile Performance in real-time. Uncover bottlenecks and get high-impact speed optimizations.

Slow due to heavy images? Use Free Image Compressor →
Quick Test:

Understanding Google Core Web Vitals in 2026

Google uses Core Web Vitals as official ranking signals to evaluate real-world user experience. A website that scores green across all metrics enjoys higher organic search placement, better ad quality scores, and significantly lower bounce rates:

LCP

Largest Contentful Paint

Measures how fast the main visual content (hero banner, title, or featured image) loads. Must be ≤ 2.5 seconds.

CLS

Cumulative Layout Shift

Measures visual stability and whether buttons or text jump unexpectedly as images or ads load. Must be ≤ 0.1.

INP

Interaction to Next Paint

Measures interactive responsiveness when a user taps a menu, button, or link. Must be ≤ 200 milliseconds.

Frequently Asked Questions

Why does my mobile score differ from my desktop score?

Mobile testing simulates mid-tier smartphones on a standard 4G wireless connection with CPU throttling. Desktop tests use unthrottled broadband and faster CPU execution, which naturally results in higher desktop scores.

How do uncompressed images damage Core Web Vitals?

Large PNG and JPEG images consume megabytes of bandwidth, delaying Largest Contentful Paint (LCP). By compressing and converting images to WebP using our free Image Compressor, you can immediately cut 60-80% of page weight.

Can Hawks Infotech optimize my slow WordPress or custom site?

Yes! Our web engineers configure server-level caching, optimize database queries, minimize blocking JavaScript, and set up modern media pipelines to achieve 90+ Google PageSpeed scores.

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