Why Use CDNs?
- Faster loading - Files are served from servers closest to your users
- Improved caching - Users may already have files cached from other sites
- Reduced bandwidth - Offload static assets to external servers
- Automatic updates - Easily update library versions
- Better performance - CDNs are optimized for fast delivery
Pro Tip: Always include SRI (Subresource Integrity) hashes when using CDN links for better security.
Web Font Best Practices
- Use font-display: swap to prevent invisible text during loading
- Limit the number of font weights and styles to only what you need
- Consider preloading critical fonts
- Use WOFF2 format for modern browsers (smaller file size)
- Include fallback fonts in your CSS font stacks
Security Considerations
- Always use HTTPS for CDN links
- Implement SRI (Subresource Integrity) for CDN scripts/styles
- Consider self-hosting for mission-critical assets
- Monitor CDN uptime and performance
- Have a fallback plan if CDN fails
Performance Tips
- Combine multiple requests when possible
- Use preconnect for CDN domains
- Load non-critical assets asynchronously
- Consider lazy loading fonts and icons
- Set proper cache headers for self-hosted assets