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Will improving my domain authority (DA) as measured by Moz help SEO? Question

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I've been working on improving my site's domain authority as reported by Moz in the hopes that it helps our Google rankings.

I have some doubts about it though. Google won't be able to see Moz's computation of the domain authority. Does Google compute it for itself? If so, are there differences between Moz's and Google's calculations?

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Search engines don't use metrics published by Moz for ranking purposes directly. There is no guarantee that improving your domain authority, or any other metric published by third parties will help SEO with a particular search engine.

Search engines use their own internal metrics that are similar to domain authority. So improving your domain authority is likely to help the internal metrics that search engines actually use.

The internal metrics that search engines use are secret. They are impossible for third parties to replicate (or even know exactly how they work.) It isn't possible for Moz to create a metric that perfectly reflects the internal metrics used by search engines. In fact, there are likely to be significant differences. For example, Moz runs its own web crawlers to find links. However, Moz doesn't crawl nearly as much of the web as Googlebot does. Another example would be fraud and spam detection. Google discounts many links that are spammy that Moz won't detect as such.

So while improving third party SEO metrics such as domain authority are likely to improve SEO to some extent, there are going to be cases in which search engine ranking improvements don't follow improvements to domain authority.

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