Core Web Vitals

Google's set of metrics measuring real-world user experience: Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS).

Core Web Vitals are a direct ranking factor in Google. LCP measures load time for main content, INP measures response time to interactions, and CLS measures visual stability. Poor Core Web Vitals can undermine even excellent content and Schema markup.