Amazon CloudFront: Delivering millisecond performance to global audiences

This article discusses recent performance improvements to Amazon CloudFront for delivering content to global audiences with millisecond latency.

• CloudFront terminates TLS connections at edge locations, reducing handshake latency significantly
• TLS 1.3 support to origins reduces handshake time by 36% with stronger encryption
• Intelligent connection pooling uses TCP pools, HTTP Keepalive, and TLS reuse between cache layers
• TCP Fast Open reduces connection establishment time by up to 25% between edge and origin
• HTTPS DNS records enable protocol discovery during DNS resolution, reducing negotiation delays
• Intelligent network routing continuously optimizes paths based on real-time performance experiments
• Customers see over 30% improvement in first byte latency with CloudFront

CloudFront's latest enhancements combine global edge infrastructure, advanced protocols, and intelligent optimization to deliver faster, more secure content delivery for modern web applications.