How does localtest.me work?

Question

Django

I am implementing a multi-domain application structure in Django. Used django-host. I could not test any of my subdomains on the local host 127.0.0.1:8000. Then I came across localtest.me. I launched runserver localtest.me and after that subdomains began to respond to my requests.
Very interested in how it works. How could I point my application to the domain of the remote server?

Answer 1

elementary

$ dig localtest.me a

localtest.me.           2891    IN      A       127.0.0.1