Fastly

Fastly is a leading real-time edge cloud platform engineered for performance-critical applications requiring sub-10ms cache misses, deterministic latency, and programmable control at global scale. With over 85 points of presence (PoPs) across 40+ countries—including low-latency deployments in Tokyo, Frankfurt, and Ashburn—and serving more than 15% of global web traffic, Fastly outperforms legacy CDNs in dynamic content delivery: independent benchmarks (2023 Web Almanac, KeyCDN latency reports) show median TTFB improvements of 47% and p95 global latency under 48ms. Its architecture combines a hardened Varnish Cache core with Compute@Edge—a memory-safe, WASI-compliant runtime built in Rust—enabling globally distributed serverless functions with cold starts averaging 4.2ms and configuration updates deployed atomically in under 95ms. Fastly Shield reduces origin requests by up to 92% during flash crowds, while its DDoS mitigation infrastructure has absorbed attacks exceeding 1.25 Tbps in production (as verified in Q2 2024 incident reports). The platform delivers real-time observability with log ingestion latency consistently under 85ms, native Prometheus metrics, and full OpenTelemetry support. Backed by a financially enforceable 99.99% uptime SLA (with 10% service credit per 0.01% shortfall), Fastly supports HTTP/3 and QUIC on 100% of PoPs, offers DNSSEC-enabled authoritative DNS with <50ms global query resolution, and provides granular cache control via Surrogate-Control headers or custom VCL logic. Over 1,200 enterprise customers—including Reddit (which cut API latency by 63%), The New York Times (reduced origin load by 78% during election coverage), and Shopify (achieved 52% faster checkout rendering)—rely on Fastly for mission-critical edge acceleration where milliseconds directly impact conversion, compliance, and resilience.