Since 2021, Core Web Vitals are an official ranking factor. Optimize your performance = improve your search result position.
Analyze my Core Web VitalsGoogle measures your site's user experience through these key indicators.
Display time of the largest visible element. Must be under 2.5 seconds.
Responsiveness to user interactions. Must be under 200 milliseconds.
Visual stability of the page. Must be under 0.1 to avoid shifts.
Sites that pass Core Web Vitals have a significant advantage in Google search results.
Core Web Vitals have been an official ranking factor since 2021
Google displays a "Page Experience" badge for high-performing sites
Google explores more pages on fast sites
Measured impact after LowImpact optimization
Every technical optimization improves your Core Web Vitals and SEO.
WebP, adapted dimensions, lazy loading
Compressed CSS, JS and HTML
Instant above-the-fold rendering
Preload, swap, subsetting
Instant repeat visits
Optimized Schema.org
Lighthouse scores before and after LowImpact optimization
Analyze your Core Web Vitals and get actionable recommendations.
Test my Core Web Vitals