Core Web Vitals optimization Targeted optimization for the three Core Web Vitals metrics that affect Google Search ranking and user experience. The three metrics | Metric | Measures | Good | Needs work | Poor | | ------- | ---------------- | ------- | ------------- | ------- | | LCP | Loading | ≤ 2.5s | 2.5s – 4s | 4s | | INP | Interactivity | ≤ 200ms | 200ms – 500ms | 500ms | | CLS | Visual Stability | ≤ 0.1 | 0.1 – 0.25 | 0.25 | Google measures at the 75th percentile — 75% of page visits must meet "Good" thresholds. --- LCP: Largest Contentful Paint LCP measures when the largest visible con…