DDavid Fast
January 9, 2026
Speed is a feature. Learn technique like image optimization, script loading strategies, and dynamic imports to speed up your Next.js app.
## Core Web Vitals
Performance isn't just a feeling; it's a metric. Google's Core Web Vitals define the success of your user experience.
### Checklist
- [x] **Next/Image**: Use it for automatic resizing and format selection.
- [x] **Font Optimization**: Use `next/font` to zero-out CLS.
- [x] **Dynamic Imports**: Lazy load heavy components.
- [x] **Metadata**: Preconnect to critical origins.
Performance engineering is an iterative process. Measure, optimize, repeat.
