SEO optimization of a site with subdomains?

Question

Search Engine Optimization

Hello guys. Ask such a question.
There is a website (wedscanner.ru) and there are 82 regions as subdomains, an example (moskow.wedscanner.ru) and so on.
In Yandex webmaster, we only have the main page of the site connected.
So that's the question. Do I need to connect each subdomain to the webmaster? And to do optimization for each subdomain? We have a multisite.

Answer 1

Yes, for a search robot, these are different sites.