Difference between Google PageRank and SEOMOZ Domain Authority

PageRank vs Domain Authority

Over the past few months, Google is continually being criticised for its frequent and infamous Pandas and Penguins. Surprisingly, people are increasingly ditching PageRank in favour of Moz (formerly SEEOMoz) Domain Authority, and the trend has been on the rise for quite some time now. So does that mean that PageRank's authority is being undermined? And what exactly is Domain Authority? More importantly, how do the two stack up against each other? In this post, we attempt to answer some of these questions.

Google PageRank

As most of you know by now, Google PageRank is a measure of a site's popularity on a scale of 0-10, with 10 being the highest. It mostly depends on the number of nofollow and dofollow backlinks on your blog, and it is one of the factors that effect your SERP (Search Engine Result Page) position.

Moz Domain Authority

Now the Domain Authority metric by Moz is a bit like PageRank in the sense that it is a domain-level rank. But it is more concerned with how a website will perform in search results. It is measured on a scale of 100, and is updated frequently - once or twice every month.

Differences between PageRank and Domain Authority

To get a better understanding of why people are trending more towards Domain Authority these days, let us look at the difference between the two rank metrics.


Moz Domain Authority, at any given time, is usually more up-to-date than Google PageRank. Pr only gets updated quarterly - every three months. But DA changes once or twice every month. So even if a site has radically improved, its PR might not get updated for another couple of months, which is a lot of time.


Google PR is measured on a scale of 0-10, which I think is one of the biggest problems with it. Google rates itself as 9, so you can really only go from 0 to 8 (rarely 9). Since the gradation is so crude and abrupt, you can't tell if you're going up or down or staying at the same place when you get the same PR score two times in a row. It's like being only able to adjust your thermostat in degrees of 10. Imagine going from 20 degrees to directly 30 degrees. There's no middle ground, no way to tell apart two temperatures both in the 20s.

With Domain Authority, you get a much finer scale of 0-100. So you now get a hundred grades instead of just 10. So you can monitor your progress and trends in much greater resolution, or detail.


Google PageRank is broadly based on the number of nofollow and dofollow links and backlinks. But there's a lot of other things that Google doesn't disclose. So when you see a PR figure of, let's say 5, you don't get to know the breakdown of points, or in other words, you don't know what things contributed towards this score. So we can see a lot of opacity in Google PageRank.

Domain Authority, on the other hand, is more transparent, and it tells about your progress in areas like Linking Root Domains, Total Links, MozTrust, MozRank, and so on. This way, you get to know exactly where you are going wrong.


Google employees have this tendency to disregard the actual importance of PageRank. They always advise people not to put much stock into it, as it is only one of the 200 signals Google uses to rank pages on SERPs.
"We only update the PageRank displayed in Google Toolbar a few times a year; this is our respectful hint for you to worry less about PageRank, which is just one of over 200 signals that can affect how your site is crawled, indexed and ranked. PageRank is an easy metric to focus on, but just because it's easy doesn't mean it's useful for you as a site owner."
On the other hand, Moz Domain Authority is relatively gaining momentum, and the constant improvements are making it more and more accurate and reliable. Who knows, in the coming months, DA might actually become a lot more important than PR?

Effect on SERPs

Although Google PR might not be given as much importance as DA in terms of search ranking, Google PR still has some effect on the SERP, whereas DA does not. This is probably why people still go for PR.

Another reason why PageRank is so popular is that, it is measured by Google. There's a whole psychological effect related to it, and people automatically tend to trust it. PR has been around for so long that almost everyone now knows about it.

So what do you think about Domain Authority? Will it overtake PageRank, or is Google too big to let that happen? Leave us with your responses in the comments section below. And as always, feel free to ask any questions. Cheers :)

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  1. Superb article and very educative. Every webmaster and blogger should read this blog post. I have downloaded the MOZ toolbar. There are twp metrics, one is PA (page authority) and the other is DA (domain authority). Do you have any idea on how to interpret them?

    1. stay tuned for our post tonight :)
      it'll tell you how to use the Open Site Explorer by Moz, and what do all of those metrics mean

  2. Nice share man!
    Can anyone tell DA of my website : http://enggtechfest.com

    1. you can check it yourself bro on Open Site Explorer

  3. Is it possible to have a proper DA, if one uses free domains like blogspot.com or wordpress.com? I'm little bit confuse in it... Coming back to what this post is all about, well GPR yet has an upper edge over DA as it has the logo of Google, and experiences with it, while the other iz rising with a great rate by gaining popularity...we need to wait a few more months to have a proper idea I guess...


    TechStake-Tech News Blog

    1. exactly, you're absolutely correct.....PR is a bit over-rated I think. It's not even accurate. I've seen parked domains with lots of cheap backlinks get a high PR

  4. Thank you for the informative post...many places i have seen this DA rank...Present guest bloggers are giving important to DA more than PR and i also think DA is important and reliable...Thanks for the Information...


  5. Replies
    1. At least, that's what Google says :P
      nobody knows for sure

  6. Replies
    1. Haha valid point, it might :P
      But then again, Moz is no kid either....It's a pretty big company

  7. "a bit like PageRank in the sense that it is a domain-level rank".

    FYI, PageRank has nothing to do with the domain.

  8. Page Rank which is defined by quality inbound links from other website or web-pages to a web page or website as well as say the importance of that site.

    It is the grade (1 to 10) your web page gets from headmaster Google.
    SERP is the position of your website in Google’s search engine results based on a certain keyword combination.

    It is the placement of the website or web-page which is returned by search engine after a search query or attribute. both are very important in seo.