CDNPerformanceCachingInfrastructure

CDN Configuration: Optimizing Content Delivery

Configure CDNs for optimal performance. Learn caching strategies, edge functions, and global content distribution.

B

Bootspring Team

Engineering

February 26, 2026

2 min read

CDNs serve content from locations close to users. This guide covers configuring CDNs for optimal performance.

How CDNs Work#

User (Tokyo) ─────┐
                  │
User (NYC) ───────┼──> Edge Server ──> Origin Server
                  │    (Cached)
User (London) ────┘

Cloudflare Configuration#

Cache Rules#

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Page Rules#

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Cache Headers#

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Cache Invalidation#

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Cache Tags#

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Performance Tips#

Use immutable for versioned assets: max-age=31536000, immutable
Enable Brotli compression: Smaller file sizes
Use stale-while-revalidate: Better perceived performance
Cache API responses: Even short TTLs help
Monitor cache hit ratio: Target >90% for static content

Configure appropriate TTLs, implement cache invalidation, and monitor cache performance.

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