The 2026 Website Speed Checklist: Reach 90+ Lighthouse in One Weekend

The Fastest Wins in Website Performance

You do not need to rebuild your website to make it fast. These changes, applied in order, will move most business websites from a 50-60 Lighthouse score to 90+.

1. Upgrade to a Modern Image Format

Replace all JPEGs and PNGs with WebP or AVIF. For Next.js projects, the next/image component handles this automatically. For WordPress, the Imagify or ShortPixel plugin does the job. Impact: LCP improvement of 15 to 30%.

2. Enable HTTP/2 or HTTP/3

Most hosting providers support this via cPanel or the server config. HTTP/2 multiplexes requests and dramatically reduces round-trips on image-heavy pages.

3. Remove Render-Blocking Resources

Use Chrome DevTools Coverage tab to identify unused CSS and JavaScript. Common culprits: Google Fonts loaded synchronously, unused jQuery plugins, old analytics scripts. Fix: load fonts with display swap, defer non-critical scripts.

4. Use a CDN

Cloudflare's free tier is sufficient for most Indian business websites. It handles global caching, TLS termination, image compression, and DDoS protection.

Following this checklist should get you to a 90+ Lighthouse score without touching your core codebase.