Several aliases for the site. That's right?

Question

htaccess

Hello.
You need to add aliases for the site.
Let's say that the site is on site.ru, and you need to add site.com and site.rf to it.
Do not tell me, is it right or did I write nonsense? Alas, there is no way to test.

RewriteCond %{HTTP_HOST} ^www.site.ru$ [NC]
RewriteRule ^(.*)$ http:\\site.ru\$1 [L,R=301]

RewriteCond %{HTTP_HOST} ^site.com$ [OR,NC]
RewriteCond %{HTTP_HOST} ^www.site.com$ [NC]
RewriteCond %{REQUEST_URI} !^/robots.*
RewriteRule ^(.*)$ http://sait.ru/$1 [R=301,L]

RewriteCond %{HTTP_HOST} ^xn--80aswg.xn--p1ai$ [OR,NC]
RewriteCond %{HTTP_HOST} ^www.xn--80aswg.xn--p1ai$ [NC]
RewriteCond %{REQUEST_URI} !^/robots.*
RewriteRule ^(.*)$ http://sait.ru/$1 [R=301,L]

Answer 1

RewriteCond %{HTTP_HOST} ^site.com$ [OR,NC]
RewriteCond %{HTTP_HOST} ^site2.com$ [OR,NC]
RewriteCond %{HTTP_HOST} ^site3.com$ [NC]
RewriteRule ^(.*)$ http://site.ru/$1 [R=301,L]