Is it possible to make one site open on different domains?

Question

Domain name market

Is it possible to make one site open on different domains?
But so that the files remain the same, and so that the domain in the address bar remains the same.

Answer 1

Is it necessary?
The PS will index these sites and glue them together, i.e. as a result, one domain will remain in the issue.
It's better to do a 301 redirect.
In general, such things are usually prescribed on the hosting with an alias.