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
      • SEO Q&A
      • Webinars, Whitepapers, & Guides
    • Blog
    • Why Moz
      • Agency Solutions
      • Enterprise Solutions
      • Small Business Solutions
      • Case Studies
      • 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.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      Learn more
    • 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.

      What is your Brand Authority?
      Moz

      What is your Brand Authority?

      Check yours now
    • 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.

      • SEO Q&A

        Insights & discussions from an SEO community of 500,000+.

      Unlock flexible pricing & new endpoints
      Moz API

      Unlock flexible pricing & new endpoints

      Find your plan
    • Blog
    • Why Moz
      • 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.

      • Case Studies

        Explore how Moz drives ROI with a proven track record of success.

      • 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. Link Explorer
    5. Why my DA dropped Suddenly?

    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.

    Why my DA dropped Suddenly?

    Link Explorer
    3
    4
    1789
    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.
    • yousafsaeed1990sf
      yousafsaeed1990sf last edited by

      I want to know why my site's DA got changed suddenly? Whereas the DA of other sites of my competitors remained the same.

      It happened just a few days ago and i noticed it today!

      1 Reply Last reply Reply Quote 0
      • yousafsaeed1990sf
        yousafsaeed1990sf @samantha.chapman last edited by

        I need info on embedding youtube videos inside blog posts as well. As per a study i found after inclusion of youtube embeds inside posts, the DA drops allot. But when we remove the embeds then DA comes back to normal.

        Can somebody explains what is it with this behavior of DA?

        1 Reply Last reply Reply Quote 1
        • samantha.chapman
          samantha.chapman Staff last edited by

          Hi there,

          Sam from Moz's Help Team here!

          The change you've noticed would be due to the fact that we updated the way in which we calculate DA as of March 5th. The new DA has been launched with the purpose of improving our ability to predict a site’s ranking ability with even better accuracy. This update aims to give us a more accurate depiction of your site’s influence over time.

          This doesn't mean we’ve started from scratch with our calculations; in fact, all of the features that went into the old DA model are also present in the new DA model as we’ve added more complexity around them. This includes a better understanding and consideration for the quality of the site linking to the site you’re researching, and links to a page that redirect to another page.

          Please note, when tracking your DA and the Link Building work you’re performing, DA should always be looked at in comparison to your target competitors, never as a standalone metric.

          You can read more about this here https://moz.com/domain-authority-2.0

          I hope this helps but please let us know if there's more we can help to clarify!

          yousafsaeed1990sf 1 Reply Last reply Reply Quote 0
          • Shalusingh
            Shalusingh last edited by

            Don't worry that may be an temporary fluctuation. Go to this post that may help you increase your DA.

            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

            • Be7sjsj38sj

              Unsolved I have question related to Website DA.

              da

              Website DA is 4 but Ahref is showing DR 5. Why its different. Top Follow APK
              Top Follow
              Top follow for PC
              Top Follow Mod APK

              Link Explorer | | Be7sjsj38sj
              0
            • seofarahat001

              Spam Score increased Sudden

              Hey, My website Spam score increased suddenly. We had 1% spam score, Now it's 50%, We don't have many spammy website links, spammy links already disavowed. Why the spam score increased. After checking the 27 signals we found we blocked Google Fonts API, Is this the issue? When is the date of the next update in the spam score? Waiting for an Expert opinion. Thanks in Advance Neethu

              Link Explorer | | seofarahat001
              0
            • iescobill

              How long will it take to reach DA 2?

              Hello, I have a local website (https://iescobill.pk) where I am getting good organic traffic, and also social traffic, and so far my page authority (PA) has reached #13, but DA still 1? Is it normal?

              Link Explorer | | iescobill
              0
            • mark7422

              How do I know when my DA Update?

              Before Moz 2.0 we know that every month DA will be updated but now we don't know. Recently my site DA has 14 after few days working on it Then I check my DA is 17 So now I'm confused that the DA update runs again or Now it working on dynamically. I shall be very thankful to you if you clear this issue.

              Link Explorer | | mark7422
              0
            • adi2305

              PA 1 and DA 1, the website is not new

              Hi everyone! I have a website (ponturipariuri.pro), few years old. The PA and DA used to be around 25-35 but now it shows me 1 for both PA and DA. I just discovered it and I do not understand why. Take a look at the image I attached here. There was no spam on my website. Google still shows my website on the first page for many keywords. 3ojp7qt.png

              Link Explorer | | adi2305
              0
            • ThomasHarvey

              Site has DA of 26 but no backlinks

              I'm asking this for a guy over at SEOchat: http://forums.seochat.com/new-user-seo-questions-answers-123/unusual-change-domain-authority-486962.html Here's what his post says: Exclamation Unusual Change in Domain authority
              Guys and Girls, I'm having a weird issue in one of my sites , thing is the site had DA 11 in July and however when check on September Site is having 26 without me doing any type of link building and there are no new posts for this month as well. When checked using open site explorer there are no backlinks indexed in their Mozcape index as well. Site: http://www.beijingtravelchannel.com/ Can you give me any plausible reasons for this to happen, so that i can check them out. Thanks in Advance.

              Link Explorer | | ThomasHarvey
              0
            • randfish

              DA/PA Fluctuations: How to Interpret, Apply, & Understand These ML-Based Scores

              Howdy folks, Every time we do an index update here at Moz, we get a tremendous number of questions about Domain Authority (DA) and Page Authority (PA) scores fluctuating. Typically, each index (which release approximately monthly), many billions of sites will see their scores go up, while others will go down. If your score has gone up or down, there are many potential influencing factors: You've earned relatively more or less links over the course of the last 30-90 days.
              Remember that, because Mozscape indices take 3-4 weeks to process, the data collected in an index is between ~21-90 days old. Even on the day of release, the newest link data you'll see was crawled ~21 days ago, and can go as far back as 90 days (the oldest crawlsets we include in processing). If you've done very recent link growth (or shrinkage) that won't be seen by our index until we've crawled and processed the next index. You've earned more links, but the highest authority sites have grown their link profile even more
              Since Domain and Page Authority are on a 100-page scale, the very top of that represents the most link-rich sites and pages, and nearly every index, it's harder and harder to get these high scores and sites, on average, that aren't growing their link profiles substantively will see PA/DA drops. This is because of the scaling process - if Facebook.com (currently with a DA of 100) grows its link profile massively, that becomes the new DA 100, and it will be harder for other sites that aren't growing quality links as fast to get from 99 to 100 or even from 89 to 90. This is true across the scale of DA/PA, and makes it critical to measure a site's DA and a page's PA against the competition, not just trended against itself. You could earn loads of great links, and still see a DA drop due to these scaling types of features. Always compare against similar sites and pages to get the best sense of relative performance, since DA/PA are relative, not absolute scores. The links you've earned are from places that we haven't seen correlate well with higher Google rankings
              PA/DA are created using a machine-learning algorithm whose training set is search results in Google. Over time, as Google gets pickier about which types of links it counts, and as Mozscape picks up on those changes, PA/DA scores will change to reflect it. Thus, lots of low quality links or links from domains that don't seem to influence Google's rankings are likely to not have a positive effect on PA/DA. On the flip side, you could do no link growth whatsoever and see rising PA/DA scores if the links from the sites/pages you already have appear to be growing in importance in influencing Google's rankings. We've done a better or worse job crawling sites/pages that have links to you (or don't)
              Moz is constantly working to improve the shape of our index - choosing which pages to crawl and which to ignore. Our goal is to build the most "Google-shaped" index we can, representative of what Google keeps in their main index and counts as valuable/important links that influence rankings. We make tweaks aimed at this goal each index cycle, but not always perfectly (you can see that in 2015, we crawled a ton more domains, but found that many of those were, in fact, low quality and not valuable, thus we stopped). Moz's crawlers can crawl the web extremely fast and efficiently, but our processing time prevents us from building as large an index as we'd like and as large as our competitors (you will see more links represented in both Ahrefs and Majestic, two competitors to Mozscape that I recommend). Moz calculates valuable metrics that these others do not (like PA/DA, MozRank, MozTrust, Spam Score, etc), but these metrics require hundreds of hours of processing and that time scales linearly with the size of the index, which means we have to stay smaller in order to calculate them. Long term, we are building a new indexing system that can process in real time and scale much larger, but this is a massive undertaking and is still a long time away. In the meantime, as our crawl shape changes to imitate Google, we may miss links that point to a site or page, and/or overindex a section of the web that points to sites/pages, causing fluctuations in link metrics. If you'd like to insure that a URL will be crawled, you can visit that page with the Mozbar or search for it in OSE, and during the next index cycle (or, possibly 2 index cycles depending on where we are in the process), we'll crawl that page and include it. We've found this does not bias our index since these requests represent tiny fractions of a percent of the overall index (<0.1% in total). My strongest suggestion if you ever have the concern/question "Why did my PA/DA drop?!" is to always compare against a set of competing sites/pages. If most of your competitors fell as well, it's more likely related to relative scaling or crawl biasing issues, not to anything you've done. Remember that DA/PA are relative metrics, not absolute! That means you can be improving links and rankings and STILL see a falling DA score, but, due to how DA is scaled, the score in aggregate may be better predictive of Google's rankings. You can also pay attention to our coverage of Google metrics, which we report with each index, and to our correlations with rankings metrics. If these fall, it means Mozscape has gotten less Google-shaped and less representative of what influences rankings. If they rise, it means Mozscape has gotten better. Obviously, our goal is to consistently improve, but we can't be sure that every variation we attempt will have universally positive impacts until we measure them. Thanks for reading through, and if you have any questions, please leave them for us below. I'll do my best to follow up quickly.

              Link Explorer | | randfish
              13
            • roberthseo

              Big drop in Domain Authority

              Hello there, Our domain authority dropped yesterday from 37 to 33 yesterday Our domain name is: http://www.wallpapered.com We have been building a few quality/relevant links in the last month so am very surprised by this big drop? Would appreciate everyone's feedback? Thanks

              Link Explorer | | roberthseo
              6

            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
            Free SEO Tools
            • Domain Authority Checker
            • Link Explorer
            • Keyword Explorer
            • Competitive Research
            • Brand Authority 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.