Web performance directly impacts user experience, SEO rankings, and conversion rates. This guide covers the essential techniques to optimize your website for speed and achieve excellent Core Web Vitals scores.
Understanding Core Web Vitals
- LCP (Largest Contentful Paint): < 2.5s
- FID (First Input Delay): < 100ms
- CLS (Cumulative Layout Shift): < 0.1
- INP (Interaction to Next Paint): < 200ms
Quick Performance Wins
html
<!-- Preload critical resources -->
<link rel="preload" href="/fonts/main.woff2" as="font" crossorigin>
<link rel="preload" href="/hero.webp" as="image">
<!-- Lazy load images -->
<img src="image.webp" loading="lazy" decoding="async" alt="...">
<!-- Optimize third-party scripts -->
<script src="analytics.js" async></script>40%Faster load times
20%Better SEO ranking
15%Higher conversions
90+Lighthouse score
