AuthNG multi-region Kong failover architecture distributes API gateway traffic across US, EU, and AP regions using AWS Route53 latency-based routing with health checks. Clients resolve through NS1 external DNS to Route53, which routes requests to the nearest Kong gateway (us-east-1, eu-west-1, ap-southeast-1), each backed by Kubernetes clusters running AuthNG services. Each region designates a primary AuthNG target with failover=false, while Kong gateways maintain prioritized failover chains—US→EU→AP, EU→AP→US, AP→EU→US—ensuring service continuity if a regional endpoint fails. This architecture demonstrates active-active regional distribution with intelligent failover, reducing latency for global clients while maintaining high availability across availability zones. Fork and customize this diagram on Diagrams.so to adapt failover priorities, add additional regions, or integrate with your own DNS and load-balancing strategy.