Does MozAuthority calculates the MozAuthority of each incoming link?

[Yoav_Vilner]

Hey Mozzers!

So as I'm checking MozAuthority as a primary parameter to determine if a co-operation with a website is worthwhile, I did notice that it's mainly based on QUANTITY of inbound links.

My question is this: Does my site's MozAuthority calculates The same parameter from each incoming link?

Example:

My site, www.google.com, has 5 incoming links from low MozAuthority domains.

Your site, www.facebook.com, has 5 incoming links from medium MozAuthority domains.

His site, www.yahoo.com has 5 incoming links from high MozAuthority domains.

Will the 3rd case necessarily have a higher MozAuthority than #1 and #2?

[AdamThompson]

Moz Authority metrics are based not on the total number of links, but the authority each link passes. A page with links from 5 high authority pages will generally have much higher authority metrics than a page with links from 5 low authority pages.

Will the 3rd case necessarily have a higher MozAuthority than #1 and #2?

Probably, but not necessarily:

• It's possible to get links from low authority pages on high authority domains, which would only pass a small amount of authority.
• A page with a lot of links will pass less authority to each link.

My answer uses some generalizations, here are more details on the specific metrics:

http://www.seomoz.org/learn-seo/domain-authority

http://www.seomoz.org/learn-seo/page-authority

http://www.seomoz.org/learn-seo/mozrank

[Solvari]

I think you mean either DomainAuthority or mozRank when you mention MozAuthority. mozRank is similar to Google's PageRank and Domain Authortiy is a metric based on a combination of all domain ranking factors.

As far as I know mozRank is mainly based on the number of inbound links and the populairity of the websites that link to you. So here your assumption will be true.

With Domain Authority a lot of other metric are taken into consideration as well to calculate the final score, such as domain trust metrics, social signals, etc.

[Yoav_Vilner]

Thanks, Joram.

So in the bottom line - does Domain Authority also calculates the DA of each inbound link?

[Yoav_Vilner]

Thanks, Adam.

I was looking for a quote at the "Learn SEO" section that you linked to, and there isn't any ;\

[Solvari]

Yes it does in the end.

[Dr-Pete]

Joram and Adam are essentially correct. MozRank is built to emulate PageRank, and so it does take into account the MR of the incoming links, not just the total count. It is in essence, though, a measure of quantity - just a complex one. Links from sites with more links count more, so that's a quality signal, in an abstract way, but we don't take into account the relevance of the links or spam factors.

Domain Authority is much more complex and is a machine-learning model based on observed Google rankings. Essentially, it's an attempt to predict the ranking power of a site.