Hi ALL ! I am owner of big russian news sites such as 89.ru and 63.ru. The sites are very old sites with a huge amount of content,daily updated and have a good positions in google now. Can i use subdomains of the domains for english sites ? There will be no problems what the basic site in Russian, and subdomains in English?
as i know if you don't interlinked your subdomain with your domain then you are safe & you cud use your subdomain for any purpose. Bcoz subdomain consider a totally different than domain name. So do your work but do not interlinked them.
So i must no use link from my main domain to a subdomains ? Must use external links and links exchange for subs ?
Actually i wanna say one thing if your subdomain is relevant to your domain then you have to give proper care bcoz if you interlinked them & Google finds something duplicate then it cud Penalize your main domain. As far as you have concern about language then it does not matter. But if domain & subdomain are relevant & u interlinked them then try to give each & everything new & fresh on your subdomain. And if your subdomain is not relevant to your domain then you cud interlinked them language does not matter. That's all about.
Still there are not clear assumptions about subdomain. Nobody gives clear points about that still there are many confusion about subdomain so it wud be better don't interlinked them.