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I am determining the value of links we get.

Is a link on a subdomain less valuable vs one on the root domain? How less valuable would you consider a subdomain link?

For example blog.site.com vs site.com/blog

What other metrics would you take into consideration for the value of a subdomain link?

50% of our links are found in Webmaster Tools but are not found in Open Site Explorer. Is this normal?  If these links are not indexed does that mean our DA will not grow as high as it could until they are crawled?

Is there value in consistently getting a link from a high DA sites?

For example, consistently posting on a blog monthly rather then only doing it once and getting a link/being done with it.

Could you list the pros of consistently getting links on high DA sites?

Looking for the benefits of using this markup (https://schema.org/LocalBusiness) for profiles.

Note: the website lists company information on profile pages, it is not a local business website.

I am working on a website that has company profile pages. What are the advantages of using LocalBusiness rich snippets for profiles?