AWS DNS service that routes internet traffic to your applications. Like a phone book that directs people to the right phone number when they call your business.
When someone types 'example.com' in their browser, Route 53 directs them to the correct server hosting the website.
All are managed authoritative DNS services that host DNS zones/records and answer queries for your domains. AWS Route 53 also includes built-in health checks and DNS-based traffic routing policies (e.g., latency, geolocation, weighted) tightly integrated with AWS resources.