Can i use domain instead of my ip in XAMPP?

Answer 1

In principle yes, if you one have.
But XAMPP is not so safe. It is intended for testing. In any case you should set up a password there.

Answer 2

https://www.betterhostreview.com/change-localhost-to-domain-name-xampp.html#:~:text=If%20you%20want%20to%20use,0.1.