Two static IPs, any TCP/UDP protocol, AWS's own backbone.
No caching, no header inspection — purely a faster network path.
1Traffic enters nearest edge
→
2Travels AWS backbonenot the public internet
→
3Fast health-check failoveracross Regions
The right tool for gaming (UDP), VoIP, IoT/MQTT — anywhere CloudFront's HTTP-only caching model provides zero benefit.