Which Azure service can route user traffic based on geographic location to optimize latency across regions?

Azure Traffic Manager is a DNS-based traffic load balancer that distributes user traffic across globally distributed Azure regions. It uses various routing methods, including geographic routing, to direct users to the closest or best-performing endpoint, thereby optimizing latency. Azure Load Balancer operates at Layer 4 (transport layer) within a single region and distributes traffic to VMs or services within that region. Azure Application Gateway operates at Layer 7 (application layer) and provides advanced routing and WAF capabilities, also typically within a single region. Azure Front Door is a global, scalable entry-point that uses the Microsoft global edge network to create fast, secure, and widely scalable web applications, offering similar capabilities to Traffic Manager but with more advanced features like WAF and CDN integration. While Front Door can also route geographically, Traffic Manager is the more direct and fundamental service for DNS-based geographic traffic distribution.