Complete website CDN setup guide: from basics to advanced optimization
CDN (Content Delivery Network) is indispensable modern website infrastructure. It accelerates site speed while providing DDoS protection, SSL, and security rules.
CDN provider comparison
| Provider | Free Tier | Best for |
|---|---|---|
| Cloudflare | Yes | Small-medium sites |
| Bunny CDN | No | Budget projects |
| AWS CloudFront | No | AWS users |
| Fastly | No | High-traffic sites |
Quick deployment guide (Cloudflare)
- Register and add your domain
- Update nameservers to Cloudflare's
- Configure SSL mode (Flexible/Full/Full Strict)
- Set up caching rules and page rules
Advanced caching strategies
Cache by file type
| Type | TTL | Notes |
|---|---|---|
| Images | 30-365 days | Versioned filenames |
| CSS/JS | 7-30 days | Hash filenames |
| HTML | 0-1 hour | Frequently updated |
| Fonts | 365 days | Rarely changes |
| API | 0-5 min | Dynamic content |
Cache warming
Pre-warm CDN cache after new deployments to avoid first-visit slowdowns.
Edge cache purge
Purge specific URLs via API or control panel when content updates.
16IDC Takeaway
Cloudflare's free plan suffices for most websites. CDN value extends beyond acceleration to security and global availability. Every user-facing website should make CDN a standard component.
Check our CDN recommendations and server recommendations.