Website Performance Optimization Checklist for Faster Business Websites

Website speed is not just an engineering metric—it is a direct revenue driver.

According to Google, as page load time increases from 1 second to 3 seconds, the probability of a bounce increases by 32%. Furthermore, Google's Core Web Vitals directly dictate your search rankings in competitive US, European, and Australian markets.

Here is the definitive technical checklist to achieve sub-second page load speeds and a 95+ Google PageSpeed score.

The 2026 Core Web Vitals Optimization Checklist

┌─────────────────────────────────────────────────────────────┐
│ 1. INP (Interaction to Next Paint): Target < 200ms          │
│ • Minify and defer non-critical JavaScript execution        │
│ • Break up long CPU tasks with Web Workers / idle callbacks │
│ • Use CSS transforms for animations instead of JS layout    │
├─────────────────────────────────────────────────────────────┤
│ 2. LCP (Largest Contentful Paint): Target < 2.5s            │
│ • Preload hero images using <link rel="preload">            │
│ • Convert all JPG/PNG images to modern AVIF and WebP        │
│ • Enable Brotli compression and HTTP/3 on your web server   │
├─────────────────────────────────────────────────────────────┤
│ 3. CLS (Cumulative Layout Shift): Target < 0.1              │
│ • Explicit width and height attributes on all <img> & <svg> │
│ • Reserve layout space for dynamic banners and embed cards  │
│ • Use font-display: swap with matching fallback font metrics│
└─────────────────────────────────────────────────────────────┘

Server & Backend Performance Checklist

• [ ] Database Query Optimization: Eliminate N+1 queries using Django select_related() and prefetch_related().
• [ ] Redis Caching: Cache expensive database aggregations and public API endpoints in Redis.
• [ ] Edge CDN Caching: Configure Cloudflare edge caching for static assets, fonts, and pre-rendered HTML.
• [ ] Production Asset Bundling: Use Vite or Webpack with tree-shaking to produce production CSS bundles under 20KB.

Need an audit and speed boost for your website? Hire KEHEM IT for performance optimization.