Practical strategies for building lightning-fast Next.js applications.
Next.js is built with performance in mind, but there are still many optimizations you can make to squeeze out every millisecond.
Image Optimization
Next.js provides the Image component which automatically optimizes images. Use it for all your images to get automatic WebP conversion, responsive sizing, and lazy loading.
Code Splitting and Dynamic Imports
Use dynamic imports to split your code and only load what's needed for each page. This reduces your initial bundle size significantly.
Font Optimization
Load fonts efficiently using next/font to avoid layout shift and external requests. Prefer system fonts when possible for zero layout shift.
Database Query Optimization
Cache your database queries aggressively. Use ISR (Incremental Static Regeneration) to update static pages at runtime without rebuilding.
These techniques can improve your Lighthouse scores dramatically.