In the search for the main domain, but on the site a redirect to a subdomain, how so?

Question

Search Engine Optimization

In Google, when searching, I see sites for example: domain name.com and at the entrance there is a redirect to
r.name.com

Answer 1

Возможно редирект настроен неправильно на сайте. Или так настроен специально. Или гугл просто ещё не успел учесть эти изменения.

Answer 2

genikineg content was available for indexing at name.com, and the redirect for the user was configured by the terms on the site itself. For example, you entered a query in English, Google found and showed pages with relevant content (in English), you went to the site and were redirected to the Russian version of the site.