Amazon Route 53 is an AWS Domain Name System (DNS) service used to register domain names, manage DNS records, and route user traffic to AWS resources such as EC2, Elastic Load Balancer (ELB), and Amazon S3.
With Amazon Route 53, users can access websites using domain names like www.example.com instead of IP addresses. It also supports health checks, failover routing, and traffic routing for high availability.
In simple words, Amazon Route 53 connects your domain name to the correct AWS resource, making your website or application accessible on the internet.