SEOMarketing glossary

Core Web Vitals

Also known as: CWV

Core Web Vitals are a set of Google metrics measuring real-world page experience — loading speed, interactivity, and visual stability — that influence search rankings.

The three current metrics are LCP (Largest Contentful Paint, loading), INP (Interaction to Next Paint, responsiveness) and CLS (Cumulative Layout Shift, visual stability). Together they measure how a page actually feels to a real user.

Google uses Core Web Vitals as a ranking signal, specially as a tie-breaker between pages of similar relevance. More importantly, fast and stable pages convert better — slow loading is one of the biggest causes of bounces and abandoned carts.

They are improved through engineering: optimised images, efficient code, reserved space for media so the layout doesn't jump, and fast hosting. This is where technical SEO and web development overlap.

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