A "global load balancer" is not that simple. You can run multiple servers with a single anycast IP, but that will cause problems for 99% of non-UDP traffic. An

A "global load balancer" is not that simple. You can run multiple servers with a single anycast IP, but that will cause problems for 99% of non-UDP traffic. Anycast DNS is one way of pushing local traffic to local servers, but the only thing "load-balanced" is the DNS server itself, not your app. Your app is just geographically routed. If you want true global load balancing, you're beginning to talk about something like WAN optimization and running your own network fabric. If you get to that point, you're probably better off rolling your own than using AWS anyway.