Core Web Vitals

Largest Contentful Paint (LCP) measures how quickly the main content of a page becomes visible. Interaction to Next Paint (INP) measures how responsive a page feels when a visitor clicks, taps or types. Cumulative Layout Shift (CLS) measures how much visible content unexpectedly moves around while a page loads. Google publishes target thresholds for each and uses aggregated, real-user measurements — not just lab tests — to assess whether a page passes.

Core Web Vitals matter for two connected reasons: they are a confirmed ranking signal for Google Search, and they closely track the experience that determines whether a visitor stays or leaves. Caribbean audiences are disproportionately mobile and often on variable-quality connections, which makes these metrics more consequential than in markets with consistently fast fixed broadband — a slow hero image or a layout that jumps while loading costs more visitors here than it does elsewhere.

Sites are commonly measured with Google's PageSpeed Insights or Chrome UX Report data, and improved through image optimisation, reducing render-blocking scripts, using a content delivery network, and reserving space for elements that load asynchronously.