Amazon Route 53

Amazon Route 53 is a scalable and highly available Domain Name System (DNS) service from Amazon Web Services. It connects user requests to infrastructure running inside or outside of AWS, such as EC2 instances, load balancers, or S3 buckets hosting static websites. Route 53 supports standard DNS record types (A, AAAA, CNAME, MX, TXT, etc.), private DNS zones for VPCs, domain registration purchased directly through the service, and traffic flow policies for routing based on latency, geolocation, geoproximity, or weighted records. It also integrates with AWS health checks to route traffic away from unhealthy endpoints. You can manage everything through the AWS Console, CLI, SDKs, or an API. Route 53 is built on AWS's own global network of DNS servers, which helps deliver low query latency and high uptime (the service carries a 100% SLA for authoritative DNS). Because it works as a managed service, there's no need to run your own DNS infrastructure. You pay per hosted zone and per million queries, with different tiers for standard and latency-based routing. The service originally launched in 2010, and the name references TCP port 53, the standard port for DNS traffic.