Optimizing Web Performance: A Checklist

Web performance is critical for user satisfaction, SEO, and conversion rates. A fast website provides a better user experience and helps achieve business goals.

Performance Checklist

1. Image Optimization:
   • Compress images (e.g., WebP, AVIF).
   • Use responsive images (`srcset`, `sizes`).
   • Lazy load offscreen images.
2. Code Splitting:
   • Break down JavaScript bundles into smaller chunks.
   • Load only the code needed for the current view.
3. Browser Caching:
   • Leverage browser caching for static assets (images, CSS, JS).
   • Set appropriate `Cache-Control` headers.
4. Minimize CSS & JavaScript:
   • Minify and compress your code.
   • Remove unused CSS/JS (e.g., using PurgeCSS with Tailwind).
5. Reduce Server Response Time:
   • Optimize backend code and database queries.
   • Use a CDN for static content.
6. Critical CSS:
   • Inline critical CSS for above-the-fold content.
   • Defer non-critical CSS.

Regularly audit your website with tools like Lighthouse or WebPageTest to identify bottlenecks and track improvements.