My instance is accessible from ipv4 address and public DNS. I want it to be accessible from domain name only."

I just installed WordPress on Amazon AWS (EC2 Instance)

The problem is that my instance is accessible to public from both ipv4 address and domain name i asssigned to it through DNS. Like for testing purpose i used

decodewithdude.ga

The domain is accessible from http: //13.233.253.149/

https://ec2-13-233-253-149.ap-south-1.compute.amazonaws.com

https://decodewithdude.ga

1. Is it normal or should be worried about it?

2. Can i make it accessible to public only from domain name?

Thankyou