Why speed affects business results
Slow pages interrupt attention and make every next step feel harder, especially on mobile connections. Visitors may leave before they see the offer or complete an enquiry. Measure the important journeys on real devices rather than relying on a single headline score.
Understanding the Three Core Metrics
1. Largest Contentful Paint (LCP): Measures how fast the main content loads (Target: under 2.5s). 2. Cumulative Layout Shift (CLS): Measures page visual stability (Target: score under 0.1, meaning text doesn't shift around). 3. Interaction to Next Paint (INP): Measures page responsiveness to clicks or taps (Target: under 200ms).