Rendering different backend data on the same front based on the taped URL

I have a single front end that must respond to multiple URL domains name, for each URL there is different content (which comes from a single backend) to display across this same front!

The proposed solution is to make a "mapping" between the entered URL and the backend to render resolve the right data!

Is there a better approach ??
Is there any limitation on this approach?
Is there a name to what I am trying to do?

Thank you so much!