Second domain for the site

Question

Apache HTTP Server

There is a vds on FreeBSD, apache, the site works via wsgi (if it is important) I
added the second domain (hated by everyone) in the following way:
In the ISPmanager control panel, added the www domain (site.rf) and specified the home dir of the first site (site. ru). Everything works, but it feels like a redirect is just happening, the site opens, and site.ru appears in the browser line instead of
site.rf. .rf is simply not opened (the server is not available).
Has anyone experienced something similar? Google rummaged through, but exactly the options that I described above are offered ...
upd:
Now I checked, really apache really does a redirect (303) for some reason ...

Answer 1

Can redirect the site engine. WordPress, for example, does just that.

Answer 2

Install better in the same host, but with an alias (alias).