Why Speed = Revenue
Every 100ms delay costs 1% in conversions. Core Web Vitals are a direct Google ranking factor.
The Three Metrics
- LCP (under 2.5s): Largest visible element load time. Fix: Compress images, use CDN.
- INP (under 200ms): Interaction responsiveness. Fix: Defer JS, minimize main thread work.
- CLS (under 0.1): Visual stability. Fix: Set image dimensions, reserve space for dynamic content.
Quick Wins
Compress images under 100KB. Defer non-critical JS. Preload fonts and CSS. Use Cloudflare CDN. Enable browser caching.