In order to have global reach, you may be deploying your application in multiple geographical regions. When it comes to user request routing, you want to route their requests to the nearest and fastest available server for a quick response from your application. The DNS router provides the mapping between the domain names to the IP addresses and makes sure that the requests are served by the right server when the user types in the domain name—for example, when you type amazon.com in your browser to do some shopping, your request is always routed to the Amazon application server by the DNS service.
The public cloud-like AWS provides a DNS service called Amazon Route 53, where you can define a different kind of routing policy as per your application's needs. Amazon Route 53 provides DNS services to simplify domain management and zone APEX support. The following are the most used routing policies:
- Simple routing policy: As the name suggests, this...
