Web performance directly impacts user satisfaction, engagement, and revenue.
Why Performance Matters
53% of mobile users abandon sites taking longer than 3 seconds to load. A 1-second delay can reduce conversions by 7%.
Core Web Vitals
- LCP (Loading): Target under 2.5 seconds
- INP (Interactivity): Target under 200ms
- CLS (Visual Stability): Target under 0.1
Image Optimization
Use next-gen formats (WebP, AVIF), implement lazy loading, and serve responsive images with srcset.
JavaScript Optimization
Code-split with dynamic imports, tree-shake unused code, and defer non-critical scripts.
Caching Strategies
Use service workers, aggressive caching for static assets, and CDN caching for dynamic content.
Conclusion
Performance optimization is an ongoing process. Start by measuring, identify opportunities, and iterate.