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Page Rank and Domain Authority Who…?

by Kapil Jekishan
January 3, 2014

In a recent study by Search Metrics we can see that link building is still a vital part of the SEO process that will lead us to the coveted number one spot on Google. When it comes to this, page rank and domain authority both pack a fair punch. But are you in the know when it comes to them?

Page Rank – What Is It?

Page rank (PR) is one of Google’s babies. The PR measures the relevance and usefulness of each page. Pages are scored from 0 to 10 with 10 being the highest. As always, Google is quite tight lipped when it comes to letting us know how the PR is actually figured out. However, we can be certain that the number and quality of inbound links to a page will directly affect its PR score.

Quality links count as links coming from other pages or sites that are perceived to be useful and relevant. Every link will count as a vote but some votes will carry more weight than others. If an online clothing store receives inbound links from a high profile fashion blog with a high PR this can help to increase the page rank of the store. But if the store has hundreds of links from online casinos, the score will not be as high as the relevance factor just isn’t there.

Because page rank evaluates each individual page, it’s possible for site owners to compare how their pages compare with each other. Although the Home page of most sites ranks highest with PR, sometimes there can be some surprising results with interior pages ranking higher. This information can come in useful when looking at revamping content on other pages.


Domain Authority – What Is It?

Domain authority (DA) also looks at the popularity, usefulness and relevance of a site but it measures it in a different way. Also, it has nothing to do with Google. DA is a SEOMoz prediction of how the site will perform in search engine rankings. Unlike page rank, the DA scale goes from 0 to 100.

The SEOMoz system looks at all kinds of data before the final score is given. These include, but are in no way limited to:

  • Google PR
  • Alexa Rank
  • MozRank
  • MozTrust
  • Age of domain
  • Quality of content

Because of the criteria used to measure the domain authority, it can be quite easy to move up the ranks in the early days. For instance, extra points will be added as the site gets older and larger, which is a natural progression for any active website where fresh content is being added. So moving from a DA score of 10 to 30 might be relatively simple. As time goes on though, getting to the dizzying heights of a 60, 70, 80+ scores will be progressively harder.

Domain authority looks at the whole domain rather than the individual page which makes it extremely easy to compare the popularity of different sites at a glance.

Battle of the Metrics?

Site owners and advertisers will undoubtedly want to know which metric they should concentrate on while they work on their link building opportunities. It’s been suggested by many that domain authority might be more influential when it comes to search engine ranking.

The truth is though, it would be best to aim for good scores in both areas. Neither page rank or domain authority can be directly manipulated like some other methods of SEO. The emphasis must be on trying to build good quality, organic backlinks by creating useful and relevant content.

– See more at: http://webquacker.com.au/page-rank-and-domain-authority-who/#sthash.Q8oCWUHj.dpuf

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Kapil Jekishan

Content Crafter & Strategist at Webquacker. Love writing actionable content relating to sales and marketing. Favourite quote "Saying Hello doesn't have an ROI, it's about building relationships."

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  • Thanks again for an informative article. You and Moz are the only blogs that I read religiously.

    I have a relatively new site (less than 6 months) for the HVAC industry. Although I don’t write every day, I have written 43 posts since January which works out to about 2 – 3 posts per week.

    It is interesting to compare Moz’s “Open Site Explorer” and ahrefs.com

    Moz gives my site a domain authority of 18, page authority of 30 and counts 86 links

    Ahrefs gives my site an url rank of 31, domain rank of 44, and counts 580 links.

    Why such a difference?

  • Good Sharing. I always had a doubt like each one mentions like Google PR, Alexa Rank, MozRank how do they make this ranking what factors does they take into account? Does google take alexa & moz factors into account? What is your thought about this.?

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