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Do sub-domain visits do not count for website?
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It's a common understanding that Google treats sub-domains as different websites. Does that mean visits of sub-domain do not impact website in-terms of ranking or visibility or reputation at Google?
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Yes, absolutely. If the subdomain (e.g. xyz.domain.com) was migrated, using appropriate permanent redirects, to a subdirectory (e.g. domain.com/xyz) then this would support the overall site in terms of visibility and reputation on Google

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Hi Robin,
If sub-domain traffic doesn't impact website....if the same sub-domain with high traffics has been migrated as a sub-directory like a part of the website...then will it helps?
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Hi,
No... in my opinion

Traffic to a subdomain will not be associated with the website in general (i.e. the root domain). If the subdomain does not share navigation with the root domain then it will be treated as a standalone website by Google. A domain, sub or root, is nothing more than an address for locating a webpage.
That said, tools like Open Site Explorer will provide you with a Domain Authority at a root domain level, so use the Page Authority score at a subdomain level to understand your potential to rank and reputation.
Hope that helps!
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