Cloudflare vs. Fastly
The Security Behemoth vs. The Developer's Edge
Cloudflare commoditized DDoS protection and DNS. Fastly built a highly programmable cache using VCL (and now Compute@Edge).
📊 Scoring Matrix
Workers (V8 Isolates)
VCL & Compute@Edge (Wasm)
< 1 second
< 150 milliseconds (Instant)
Unmatched (WAF, Zero Trust)
Strong (Signal Sciences WAF)
Predictable, flat-ish tiers
Bandwidth-heavy, enterprise
Massive (R2, D1, Access)
Focused on edge caching
From blogs to Fortune 50
Media, E-commerce, SaaS
📋 Executive Summary
Use Fastly if you need to instantly purge complex surrogate keys in milliseconds (media/ecommerce). Use Cloudflare for literally everything else.
Cloudflare's bundled security and unmetered DDoS protection can save enterprises $100K+/yr compared to piecing together standalone WAFs + Fastly.
🎯 Decision Framework
- ✓ DDoS protection priority
- ✓ Need Edge Workers for middleware', 'Zero-trust access replacement', 'Cost predictability
- ✓ Insane volume of real-time cache purging', 'Complex CDN logic via VCL', 'Video streaming / high-throughput media', 'Heavy API caching
Building a massive media site with real-time changing inventory? Fastly. Need bulletproof security, workers, and predictability? Cloudflare.
🌐 Market Context
Cloudflare has expanded into a full compute platform (R2, D1, Workers). Fastly remains the premium choice for caching purists.
Cloudflare adoption is ubiquitous. Fastly dominates specific high-end niches (e.g., Stripe, NYTimes).
🛠️ Related Tools
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