How to Calculate % improvement in Mozrank and Domain Authority
-
I understand the concept that mozrank and Domain Authority are measured on a logarithmic scale . http://www.seomoz.org/learn-seo/mozrank
I'm trying to determine the percentage improvement in the Logrithmic value. For example
Original Domain Authority 60
Original Mozrank 5
End Domain Authority 63
End Mozrank 6.
So 5% change in DA and 20% change in MozRank. How do we convert these numbers to the real logrithmic change?
-
He's giving you a nonsense number, because SEOMoz won't reveal the true scale, so use whatever logarithmic scale you want.
ie. an indeterminate amount
-
Super interesting question!
First, let me put out a disclaimer that metrics like Domain Authority are comparative metrics that change from index to index. This means that it's best to use these numbers to compare yourself to the competition, but not to your own previous metrics as the base calculations can change. DA measures relative strength - so it's completely possible to improve 10% by raw numbers, but if your competition improved 10% as well, your relative DA really didn't change. For this reason we caution against folks measuring DA over time, and instead using it as indicator of ranking potential in real time against other competitors.
With that out of the way, last time I checked, MozRank was calculated on an algorithmic base scale of around 8.5. (Sorry, I can't be more specific - but that's part of the secret sauce. Heck, I don't even know the exact numbers.
With this knowledge, you can use a typical base calculator to figure relative strength. For example, a Mozrank of 5 on an 8.5 log scale calculates to 44370.531 um... raw MozRank points. Using the same calculations we find a MozRank 6 equals 377149.516 raw points, or 8.5x the original.
You can do similar calculations to determine the logarithmic change of DA, but keep in mind the disclaimer above and remember that since we can't reveal the exact scale, your calculations will be estimations, at best.
Hope this helps!
-
Sorry can you elaborate?
-
Multiply the original MozRank by a buck two eighty.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Lots of 404s listed in Top Pages by Page Authority
Hi guys, I'm slowly getting to grips with all the aspects of using Moz.
Moz Pro | | giddygrafix
Looking at my link analysis, under the tab labelled Top Pages by Page Authority, there's an awful lot of 404 pages listed. Are these pages which are being linked to (either internally or externally), and should I put a 301 redirect on all the pages listed? I've attached a picture... moz-screen-shot.jpg0 -
Duplicate Content for Default Document Domains
I've noticed recently that within the Moz Crawl Report I keep seeing duplicate content for one of our pages that pulls from a default document. The pages are product pages, one ending in releases/ and the other ending in releases/index and are both identical pages. Normally in these situations I would prefer to make sure that every link is being sent to the releases/ page, however according to Moz, the releases/index page is actually ranking better and has a higher internal link count. Can someone advise me on the best way to deal with this situation? Hopefully I've explained myself well enough! Thanks Sam
Moz Pro | | BlueLinkERP0 -
Can I calculate "Keyword Difficulty" metric using Mozscape API data?
We already have a web application that pulls certain metrics about websites using the Mozscape API, but we are wanting to extend the usefulness of this application to enable users of the app to pull "Keyword Difficulty" metrics in bulk, instead of one at a time (or 5 at a time). I wouldn't mind the 5 at a time limitation if we could just automate the API calls and let the tool pull data for 50 or so keywords without user-interaction. I know that it's a "formula", but I don't know what SEOMoz uses for it's formula. Has anyone figured out a way to calculate this, based on the Mozscape API data? Has anyone ever tried to reverse engineer this metric?
Moz Pro | | brchap0 -
Why are my sub-domains ranking higher than my Root Domains?
I have just noticed that my sub-domains are ranking higher in Mozrank and Moztrust than the root domain - that seems nuts. Am I doing something wrong?
Moz Pro | | simonberenyi0 -
What Exactly Does "Linking Root Domains" mean??
What Exactly Does "Linking Root Domains" mean?? And how does it affect your ranking for certain Keywords?? Thanks
Moz Pro | | Caseman57 -
Page and Domain Authority and other bits
Hi, I am in the process of finding blogs to have a few articles published with a couple of links in each. Articles will all be unique and relevant to the link I drop in and relevant in someway to the reader However I have a few questions. My site is a designer menswear site, so I have picked fashion and sports sites first and foremost to have the articles published. Now, I have a guy who owns about 30 different websites. 2 of them are sports based and about 10 are fashion based. Around $10-$15 an article. I have ran them all through the Open Site Explorer Tool and picked out the best ranked ones. Now my problem is, how do I know if its a good site to not only list an article on, but to pay for it as well. The sites page ranks are around the 30-45 range, the domains are around the 35-45 range. What is a good range to have? I know the higher the better but is 30-45 good enough to pay for? (I don't mind paying the $10 each (£7 my money) for each one) Also as he is quoted me in dollars, I assume there all USA based, so majority of users are USA based. Well I am UK based and only ship to the UK. Will this matter as much if I am trying to gain backlinks? Obviously a UK based site, would be ideal, but is it a case of getting more external links on the web for Google to find, as long as they are relevant to the user? Any help would be great. Thanks Will
Moz Pro | | WillBlackburn0 -
Keyword ranking - authority information
How can you explain that a website (not mine) appears on 1st place in Google (on the Keyword Difficulty Tool/Ranking Analysis) but the Page Authority, Page Linking Root Domains, Domain Authority, and Root Domain Linking Root Domains are much lower than the other websites on the list. Even when running the On-Page Report Card, this website gets grade F comparing to the other (including mine) websites that get better grades. I just want to understand which criteria I'm missing that can explain why a website appears on first place when it seems it's not well optimized. Any input is appreciated. Thanks.
Moz Pro | | yeseniagn0 -
Why isn't my Domain Authority much higher than my competitors'?
Looking at the Competitive Link Analysis report shows my domain outperforming my competitors on Domain MozRank, Domain MozTrust, total links, linking root domains, followed linking root domains, and linking c-blocks. But Domain Authority scores are very similar across all four sites with one competitor actually scoring higher than my domain. How should I unpick this result? I'm assuming that there must a problem with my link profile. Is that a valid assumption? Thanks, Tom fc7Ez.png
Moz Pro | | trbaldwin0