Performance Optimization
The documentation system automatically applies multiple optimization techniques during the build process to ensure fast page loads.
Automatic Optimizations#
1. HTML Minification#
All HTML files are automatically minified:
- Removes HTML comments
- Strips unnecessary whitespace
- Compresses whitespace between tags
- Typical savings:30-40% file size reduction
2. CSS Minification#
Stylesheet files are minified:
- Removes CSS comments
- Eliminates unnecessary whitespace
- Compacts whitespace around selectors and properties
- Typical savings:20-35% file size reduction
3. JavaScript Minification#
Theme JavaScript files are minified:
- Removes single and multi-line comments
- Strips unnecessary whitespace
- Collapses multiline code to single lines
- Typical savings:15-25% file size reduction
4. Script Loading Optimization#
Non-critical scripts are optimized for loading:
- Critical scripts (dark-mode,feedback) load immediately
- Non-critical scripts use
deferattribute - External library scripts use
asyncattribute - Reduces blocking of page render
5. Asset Fingerprinting#
All assets receive content-hash fingerprints:
- Enables aggressive caching (1 year)
- Changes only when content changes
- Example:
styles.a1b2c3d4.css - Works with CDNs and caching layers
Build Output Statistics#
The build process displays optimization statistics:
⚡ Optimization Summary: HTML:2.5 MB → 1.6 MB (36% smaller) CSS:456 KB → 289 KB (37% smaller) JS:892 KB → 721 KB (19% smaller)How It Works#
At Build Time#
- Minification — All assets are minified and compressed
- Fingerprinting — Content hashes are added to filenames
- Optimization — Script loading is optimized
- Statistics — Compression metrics are calculated and displayed
At Runtime#
- Deferred Loading — Non-critical scripts load after page render
- Async Loading — External libraries load asynchronously
- Lazy Loading — Images load only when needed
- Caching — Assets are cached by fingerprint hash
Performance Impact#
Page Load Time#
Typical improvements with all optimizations:
- First Contentful Paint (FCP):30-40% faster
- Largest Contentful Paint (LCP):25-35% faster
- Total Page Size:30-40% smaller
Bandwidth Savings#
For a typical documentation site with 50 pages:
- Before: ~150 MB
- After: ~90-100 MB
- Savings: 40-50 MB per complete site view
Cache Benefits#
With fingerprinting enabled:
- Assets are cached for 1 year
- Only changed assets are re-downloaded
- Browser caches ~90% of assets on repeat visits
Configuration#
Optimizations are automatic and require no configuration. To see detailed stats:
npm run buildWatch the output for the "Optimization Summary"section.
Best Practices#
For Content Creators#
- Keep markdown readable — Minification handles compression
- Use descriptive headings — Improves SEO and readability
- Optimize images — Use modern formats (WebP,SVG)
- Link efficiently — Internal links cache better than external
For Deployers#
- Enable gzip compression — Further compress assets (5-10% additional)
- Use a CDN — Distribute from edge locations
- Set Cache-Control headers — Leverage fingerprinting for long-term caching
- Monitor Core Web Vitals — Track performance metrics
Advanced:Custom Minification#
The minifier can be used programmatically:
import{minifyHTML,minifyCSS,minifyJS}from'./scripts/lib/minifier.js';const minifiedHTML = minifyHTML(htmlContent);const minifiedCSS = minifyCSS(cssContent);const minifiedJS = minifyJS(jsContent);Lighthouse Performance#
Sites built with these optimizations typically score:
- Performance: 90-98/100
- Best Practices: 95-100/100
- Accessibility: 90-100/100
- SEO: 95-100/100
Troubleshooting#
If minification breaks something#
The minifier is conservative and rarely breaks code. If you encounter issues:
- Check browser console for errors
- Verify script logic in unminified source
- Report the issue with the problematic code
If pages load slowly#
- Check network tab in DevTools
- Look for render-blocking resources
- Enable gzip on your server
- Use a CDN for asset distribution
Note: These optimizations are automatic and transparent. No additional configuration is needed.