Skip to content
    Moz logo Menu open Menu close
    • Products
      • Moz Pro
      • Moz Pro Home
      • Moz Local
      • Moz Local Home
      • STAT
      • Moz API
      • Moz API Home
      • Compare SEO Products
      • Moz Data
    • Free SEO Tools
      • Domain Analysis
      • Keyword Explorer
      • Link Explorer
      • Competitive Research
      • MozBar
      • More Free SEO Tools
    • Learn SEO
      • Beginner's Guide to SEO
      • SEO Learning Center
      • Moz Academy
      • MozCon
      • Webinars, Whitepapers, & Guides
    • Blog
    • Why Moz
      • Digital Marketers
      • Agency Solutions
      • Enterprise Solutions
      • Small Business Solutions
      • The Moz Story
      • New Releases
    • Log in
    • Log out
    • Products
      • Moz Pro

        Your all-in-one suite of SEO essentials.

      • Moz Local

        Raise your local SEO visibility with complete local SEO management.

      • STAT

        SERP tracking and analytics for enterprise SEO experts.

      • Moz API

        Power your SEO with our index of over 44 trillion links.

      • Compare SEO Products

        See which Moz SEO solution best meets your business needs.

      • Moz Data

        Power your SEO strategy & AI models with custom data solutions.

      Track AI Overviews in Keyword Research
      Moz Pro

      Track AI Overviews in Keyword Research

      Try it free!
    • Free SEO Tools
      • Domain Analysis

        Get top competitive SEO metrics like DA, top pages and more.

      • Keyword Explorer

        Find traffic-driving keywords with our 1.25 billion+ keyword index.

      • Link Explorer

        Explore over 40 trillion links for powerful backlink data.

      • Competitive Research

        Uncover valuable insights on your organic search competitors.

      • MozBar

        See top SEO metrics for free as you browse the web.

      • More Free SEO Tools

        Explore all the free SEO tools Moz has to offer.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      Learn more
    • Learn SEO
      • Beginner's Guide to SEO

        The #1 most popular introduction to SEO, trusted by millions.

      • SEO Learning Center

        Broaden your knowledge with SEO resources for all skill levels.

      • On-Demand Webinars

        Learn modern SEO best practices from industry experts.

      • How-To Guides

        Step-by-step guides to search success from the authority on SEO.

      • Moz Academy

        Upskill and get certified with on-demand courses & certifications.

      • MozCon

        Save on Early Bird tickets and join us in London or New York City

      Unlock flexible pricing & new endpoints
      Moz API

      Unlock flexible pricing & new endpoints

      Find your plan
    • Blog
    • Why Moz
      • Digital Marketers

        Simplify SEO tasks to save time and grow your traffic.

      • Small Business Solutions

        Uncover insights to make smarter marketing decisions in less time.

      • Agency Solutions

        Earn & keep valuable clients with unparalleled data & insights.

      • Enterprise Solutions

        Gain a competitive edge in the ever-changing world of search.

      • The Moz Story

        Moz was the first & remains the most trusted SEO company.

      • New Releases

        Get the scoop on the latest and greatest from Moz.

      Surface actionable competitive intel
      New Feature

      Surface actionable competitive intel

      Learn More
    • Log in
      • Moz Pro
      • Moz Local
      • Moz Local Dashboard
      • Moz API
      • Moz API Dashboard
      • Moz Academy
    • Avatar
      • Moz Home
      • Notifications
      • Account & Billing
      • Manage Users
      • Community Profile
      • My Q&A
      • My Videos
      • Log Out

    The Moz Q&A Forum

    • Forum
    • Questions
    • Users
    • Ask the Community

    Welcome to the Q&A Forum

    Browse the forum for helpful insights and fresh discussions about all things SEO.

    1. Home
    2. Moz Tools
    3. Moz Pro
    4. What is the logarithmic scale used for domain authority?

    Moz Q&A is closed.

    After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.

    What is the logarithmic scale used for domain authority?

    Moz Pro
    3
    3
    2789
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as question
    Log in to reply
    This topic has been deleted. Only users with question management privileges can see it.
    • garypropellernet
      garypropellernet last edited by

      I want to quantify how much better a score of 80 is compared to 60.

      Or 60 compared to 30 etc....

      What is the logarithm base?

      Thanks,

      Rik

      1 Reply Last reply Reply Quote 0
      • Dr-Pete
        Dr-Pete Staff last edited by

        It turns out to be a bit complicated, since DA/PA are based on a machine-learning algorithm. Dr. Matt Peters, our resident data scientist, answered a similar question here:

        https://seomoz.zendesk.com/entries/22546573-domain-page-authority-logarithmic

        1 Reply Last reply Reply Quote 1
        • Jeepster
          Jeepster last edited by

          Have you looked here?
          http://www.seomoz.org/learn-seo/domain-authority

          1 Reply Last reply Reply Quote 0
          • 1 / 1
          • First post
            Last post

          Got a burning SEO question?

          Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.


          Start my free trial


          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.

          • See all categories

          Related Questions

          • dollarpesa

            Unsolved Share some high authority DA Website

            da authority backlinks

            Share some high authority DA Website. Where can I get backlink for my website.

            Moz Pro | | dollarpesa
            0
          • alwaysbeseen

            Unsolved Using Weglot on wordpress (errors)

            wordpress weglot

            Good day to you all, Does anyone have experience of the errors being pulled up by Moz about the utility of the weglot plugin on Wordpress? Moz is pulling up URLs such as: https://www.ibizacc.com/es/chapparal-2/?wg-choose-original=false These are classified under "redirect issues" and 99% of the pages are with the ?wg-choose parameter in the URL. Is this having an actual negative impact on my search or is it something more Moz related being highlighted. Any advice be appreciated and a resolution .. Im thinking I could exclude this parameter.

            Moz Pro | | alwaysbeseen
            0
          • HayleyBowyer

            Moz Domain Authority [Megathread]

            domain authority da

            Hey Moz Community, We've noticed that there are questions about Domain Authority, what it is, and how to positively impact it. We're here to answer your questions! For a full overview, please see our help hub article here: https://a-moz.groupbuyseo.org/learn/seo/domain-authority First, it's important to keep in mind that Domain Authority (DA) is a search engine ranking score developed by Moz that predicts how likely a website is to rank in search engine result pages (SERPs). It is not a Google ranking factor. Domain Authority scores range from one to 100, with higher scores corresponding to a greater likelihood of ranking. Since DA is based on machine learning calculations, your site's score will often fluctuate as more, fewer, or different data points become available and are incorporated into those calculations. For instance, if facebook.com were to acquire a billion new links, every other site’s DA would drop relative to Facebook’s. Because more established and authoritative domains like Facebook will have increasingly larger link profiles, they take up more of the high-DA slots, leaving less room at the higher end of the scale for other domains with less robust link profiles. Therefore, it's significantly easier to grow your score from 20 to 30 than it is to grow it from 70 to 80. For this reason, it’s important to use Domain Authority as a comparative metric rather than an absolute one. The best way to influence your DA is to improve your overall site health with a focus on the quality and quantity of external links pointing to your site. Check out this video for more details on how to impact DA Happy analyzing!

            Moz Pro | | HayleyBowyer
            0
          • Easigrass

            Domain still not being found in search

            Hi guys, I've been handed a client who needs some seo work. I've tweaked one of their pages to focus on a chosen keywords about 4 months back but still the site is not even visible using the new Domain Analysis tool from moz and it still won't rank at all for the keywords. Am I missing something here? Is there something blocking the SERP from listing the website? I've ran a site: search on Google and it returns 283 results on the website. It's puzzling me as there clearly is something stopping it from being ranked. The domain name in question is: https://cloud9inecommunications.co.uk Thanks in advance.

            Moz Pro | | Easigrass
            1
          • Nor123

            I bought a 5 year old domain and has a spam score of 23%.....

            A few months ago i bought a 5 year old domain and when i went to check in Moz pro the spam score, it shows its at 23%. DA is 1 everything else is 0. The spam score shows 23% but there are no links at all for this website (see image) https://imgur.com/a/3lHjLEh I don't understand, there are no links at all going to this website. I checked google search console, analytics and tried looking for any links linking to this domain and there is none. Even Moz isn't showing any links in the picture i provided above. Is this a glitch? Can i reset my spam score on this domain? Does that mean i wasted my money on this domain and now i can't rank with it? Is there something im missing here. I also checked is there are any warnings or manual actions and it clearly says "No issues detected". A few months earlier i bought a brand new domain very close to the 5 year old domain (new domain has a z instead of an s) and the spam score on that is 0 and DA is 1. Given that the 5 year old domain has a 23% spam score, does that mean i should use the other new domain instead and redirect the 5 year old domain to the new website?

            Moz Pro | | Nor123
            0
          • Cocoonfxmedia

            Domain Audit

            Hi What is the best tool out there to doing a full brand audit for company.  They've created at least 15 websites and have possibly many domain names which have been ordered by different people over many years. I need to find the quickest and best tool to do this with. Any suggestions would be great.

            Moz Pro | | Cocoonfxmedia
            0
          • Rokas

            How to track all domain keywords?

            Hello, lets say I have domain www.example.com I want to track rankings of www.example.com/product and www.example.com/anotherproduct with different keywords, so do I have to set up 2 different campaigns? Or is it possilble to track whole root domain with paths? Thanks!

            Moz Pro | | Rokas
            0
          • fdb

            Use of the tilde in URLs

            I just signed up for SEOMoz and sent my site through the first crawl. I use the tilde in my rewritten URLs. This threw my entire site into the Notice section 301 (permanent redirect) since each page redirects to the exact URL with the ~, not the %7e. I find conflicting information on the web - you can use the tilde in more recent coding guidelines where you couldn't in the old. It would be a huge thing to change every page in my site to use an underscore instead of a tilde int he URL. If Google is like SEOMoz and is 301 redirecting every page on the site, then I'll do it, but is it just an SEOMoz thing? I ran my site through Firebug and and all my pages show the 200 response header, not the 301 redirect. Thanks for any help you can provide.

            Moz Pro | | fdb
            0

          Get started with Moz Pro!

          Unlock the power of advanced SEO tools and data-driven insights.

          Start my free trial
          Products
          • Moz Pro
          • Moz Local
          • Moz API
          • Moz Data
          • STAT
          • Product Updates
          Moz Solutions
          • SMB Solutions
          • Agency Solutions
          • Enterprise Solutions
          • Digital Marketers
          Free SEO Tools
          • Domain Authority Checker
          • Link Explorer
          • Keyword Explorer
          • Competitive Research
          • Brand Authority Checker
          • Local Citation Checker
          • MozBar Extension
          • MozCast
          Resources
          • Blog
          • SEO Learning Center
          • Help Hub
          • Beginner's Guide to SEO
          • How-to Guides
          • Moz Academy
          • API Docs
          About Moz
          • About
          • Team
          • Careers
          • Contact
          Why Moz
          • Case Studies
          • Testimonials
          Get Involved
          • Become an Affiliate
          • MozCon
          • Webinars
          • Practical Marketer Series
          • MozPod
          Connect with us

          Contact the Help team

          Join our newsletter
          Moz logo
          © 2021 - 2025 SEOMoz, Inc., a Ziff Davis company. All rights reserved. Moz is a registered trademark of SEOMoz, Inc.
          • Accessibility
          • Terms of Use
          • Privacy

          Looks like your connection to Moz was lost, please wait while we try to reconnect.