What is the best way to glue sites on .com and .ru?

Question

Search Engine Optimization

What is the best way to glue sites with different domain zones? Make 301 redirect or glue in webmaster/robots?
As far as I know, if you do a 301 redirect to the entire site, then robots.txt will be unavailable for this site.
Both sites are equally new.

Answer 1

First, they do the gluing through the webmaster / robots, in xtaccess you can set up a 301 redirect for everything except robots.txt. but the radishes must be set after the gluing occurs, after 301 set up the move in the Google webmaster

Answer 2

https://yandex.ru/blog/platon/2073
First you need to wait for the gluing, and only then do a 301 redirect.