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. SEO Tactics
    3. Technical SEO
    4. Why did my website DA fell down?

    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 did my website DA fell down?

    Technical SEO
    4
    6
    924
    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.
    • kirupa
      kirupa last edited by

      Hello,

      Could you please let me know why might my website's DA have fallen down in merely a week? What might be a reason? I also noticed traffic from google dropped down at the very same week. Will be very thankful for any advise!

      1 Reply Last reply Reply Quote 0
      • Rupeshsankpal
        Rupeshsankpal last edited by

        Sometimes Building backlinks from websites have high spam score might be the reason.

        1 Reply Last reply Reply Quote 0
        • KristinaKeyser
          KristinaKeyser Staff last edited by

          Hi there! Kristina from Moz's Help Team here.

          Sorry to hear about your DA dropping. The reasoning behind this can be hard to pinpoint without the help of an SEO consultant or the specific web designer for your website. Domain and Page Authority scores are both calculated using Moz's Ranking Models. In essence, we take a lot of rankings data from the search engines (by running queries) and then try to build a predictive scoring system using our own on-page analyses and Mozscape link data to construct an algorithm that will effectively reproduce the search engines' results. Our current accuracy hovers in the 70% range, but over time, we expect to improve.

          Once we have a ranking model (which we internally call "uber"), we can create scores that best approximate the combinations of all our page-specific link metrics or domain-specific link metrics (removing the keyword-specific features like anchor text, on-page keyword usage, etc). These scores represent the model's query-independent or non-keyword-based ranking inputs.

          In simple terms, Domain Authority is our best prediction about how content would perform in search engine rankings on one site vs. another. Page Authority answers the same question for an individual page. Both are amalgamations of all the link metrics (number of links, linking root domains, mozRank, mozTrust, etc.) we have into a single, predictive score.

          It's important to note that both Domain Authority and Page Authority are on a 100-point, logarithmic scale. Thus, it's much more difficult to grow your score from 70 to 80 than it would be to grow from 20 to 30.

          It is also important to note that if the higher authority sites that your site is seeded from drop in score, it will ripple down to all of the other links branched off from the very top. A good place to start is to compare the DA from the linking root domains from the previous index. Also take a look at your competitors scores to see how much they have dropped as well. As our indexes grow in size, there are more links that are included in our calculations.

          We recommend keeping track of how many linking root domains you have from index to index, as this will be a quick way to confirm possible reasons for an increase/decrease in the score. For an in-depth discussion from Rand, check out this article: https://moz.com/community/q/da-pa-fluctuations-how-to-interpret-apply-understand-these-ml-based-scores

          Here's some places to really delve into what is going on: 
          http://moz.com/blog/whiteboard-friday-domain-trust-authority 
          http://moz.com/blog/googles-algorithm-pretty-charts-math-stuff 
          http://moz.com/blog/whiteboard-friday-domain-authority-page-authority-metrics

          Here are some good resources to help you take a look at the factors.
          http://moz.com/blog/whiteboard-friday-domain-authority-page-authority-metrics
          http://apiwiki.seomoz.org/w/page/20902104/Domain%20Authority
          http://moz.com/blog/whiteboard-friday-domain-trust-authority

          I hope this helps! 🙂 Sorry I can't go into any more detail, but hopefully these links can help you get a handle on it. Best of luck!

          1 Reply Last reply Reply Quote 2
          • Martijn_Scheijbeler
            Martijn_Scheijbeler @kirupa last edited by

            5 to 1. Yeah then you probably were in the previous batch of data and are not included this time I guess. But do you also see a decrease in organic search traffic as for now you've only based it on this metric for now.

            1 Reply Last reply Reply Quote 0
            • kirupa
              kirupa last edited by

              It was 5, and now it is 1. I am wondering what might have affected it at all? I have a service request form on my website, people used to fill it in, and now I don't get any inquiries at all. Yet I've been doing SEO for three months: I've build backlinks, my social accounts are active, I've optimized titles, meta descriptions, IMG Alts, and website content. Could you please tell me what might have gone wrong?

              Martijn_Scheijbeler 1 Reply Last reply Reply Quote 0
              • Martijn_Scheijbeler
                Martijn_Scheijbeler last edited by

                Hi,

                The Domain Authority metric is only updated every couple of months. So that's why it could be that overtime it can drop a bit more then usual. What are you seeing of a kind of drop?

                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

                • bhsiao

                  Adding https version of website: how best to redirect

                  If I have 4 versions of my site http://www
                  http://
                  https://www
                  https:// What is the best way to redirect without losing seo positions? i have been mainly using http://www but have recently added my ssl so https works also. I heard at Moz Con that I should get the https working. All of my marketing and ads are going to http://www 301 redirect 3 of them? Which 3? If https is becoming important, should that be my main url? will it hurt my seo to switch? Thank you so much in advance!

                  Technical SEO | | bhsiao
                  0
                • ViviCa1

                  Migrating micro site into existing website

                  My company is planning to migrate an existing (ecommerce) micro site - which sits on its own domain - into their main ecommerce site. This means that the content will be moved from www.microdomain.co.uk to www.maindomain.com/category. Some products already exist on the main domain. The micro site is fairly small with just over 400 pages - I am planning to map each URL to the new URL (exact corresponding page) and create 301 redirects for each. Where any additional content does not exist yet on the existing main domain, we will create it and 301 redirect to it. The micro site currently ranks fairly well for some keywords - being such a specialised micro site, (some of) the keywords also form part of the domain name, however, they won't on the main page although they may form part of the URL (category). As an example (using a made up URL), our micro site www.bread-sticks.co.uk ranks on page 1 for the keyword bread sticks - we don't just sell bread sticks on www.bread-sticks.co.uk but also rolls and bread though, bread sticks is one category of very closely related categories. Say our main domain is www.supermarket.co.uk (selling a wide range of food / drink products. The micro site will be moving to www.supermarket.co.uk/baked-products/ - which is a category. Within that category, there are sub categories, i.e. bread sticks, rolls and bread which will sit under www.supermarket.co.uk/bread-sticks/ etc. What would be the best way for ensuring that our main domain would take over the rankings from our micro site, given that it will be sitting on our main domain as a category (one of many)? Can we expect www.supermarket.co.uk/baked-products/ or www.supermarket.co.uk/bread-sticks/ to replace www.bread-sticks.co.uk in the rankings simply by 301 redirecting? Thanks for your help!

                  Technical SEO | | ViviCa1
                  0
                • Answer2cancer

                  Rel=canonical on Godaddy Website builder

                  Hey crew! First off this is a last resort asking this question here. Godaddy has not been able to help so I need my Moz Fam on this one. So common problem My crawl report is showing I have duplicate home pages www.answer2cancer.org and www.answer2cancer.org/home.html I understand this is a common issue with apache webservers which is why the wonderful rel=canonical tag was created! I don't want to go through the hassle of a 301 redirect of course for such a  simple issue. Now here's the issue. Godaddy website builder does not make any sense to me. In wordpress I could just go add the tag to the head in the back end. But no such thing exist in godaddy. You have to do this weird drag and drop html block and drag it somewhere on the site and plug in the code. I think putting before the code instead of just putting it in there. So I did that but when I publish and inspect in chrome I cannot see the tag in the head! This is confusing I know. the guy at godaddy didn't stand a chance lol. Anyway much love for any replies!

                  Technical SEO | | Answer2cancer
                  0
                • MaartenvandenBos

                  403 forbidden error website

                  Hi Mozzers, I got a question about new website from a new costumer http://www.eindexamensite.nl/. There is a 403 forbidden error on it, and I can't find what the problem is. I have checked on: http://gsitecrawler.com/tools/Server-Status.aspx
                  result:
                  URL=http://www.eindexamensite.nl/ **Result code: 403 (Forbidden / Forbidden)** When I delete the .htaccess from the server there is a 200 OK :-). So it is in the .htaccess. .htaccess code: ErrorDocument 404 /error.html RewriteEngine On
                  RewriteRule ^home$ / [L]
                  RewriteRule ^typo3$ - [L]
                  RewriteRule ^typo3/.$ - [L]
                  RewriteRule ^uploads/.$ - [L]
                  RewriteRule ^fileadmin/.$ - [L]
                  RewriteRule ^typo3conf/.$ - [L]
                  RewriteCond %{REQUEST_FILENAME} !-f
                  RewriteCond %{REQUEST_FILENAME} !-d
                  RewriteCond %{REQUEST_FILENAME} !-l
                  RewriteRule .* index.php Start rewrites for Static file caching RewriteRule ^(typo3|typo3temp|typo3conf|t3lib|tslib|fileadmin|uploads|screens|showpic.php)/ - [L]
                  RewriteRule ^home$ / [L] Don't pull *.xml, *.css etc. from the cache RewriteCond %{REQUEST_FILENAME} !^..xml$
                  RewriteCond %{REQUEST_FILENAME} !^..css$
                  RewriteCond %{REQUEST_FILENAME} !^.*.php$ Check for Ctrl Shift reload RewriteCond %{HTTP:Pragma} !no-cache
                  RewriteCond %{HTTP:Cache-Control} !no-cache NO backend user is logged in. RewriteCond %{HTTP_COOKIE} !be_typo_user [NC] NO frontend user is logged in. RewriteCond %{HTTP_COOKIE} !nc_staticfilecache [NC] We only redirect GET requests RewriteCond %{REQUEST_METHOD} GET We only redirect URI's without query strings RewriteCond %{QUERY_STRING} ^$ We only redirect if a cache file actually exists RewriteCond %{DOCUMENT_ROOT}/typo3temp/tx_ncstaticfilecache/%{HTTP_HOST}/%{REQUEST_URI}/index.html -f
                  RewriteRule .* typo3temp/tx_ncstaticfilecache/%{HTTP_HOST}/%{REQUEST_URI}/index.html [L] End static file caching DirectoryIndex index.html CMS is typo3. any ideas? Thanks!
                  Maarten

                  Technical SEO | | MaartenvandenBos
                  0
                • PrasanthMohanachandran

                  Does redesigning the website effects the SEO?

                  What are the precautions to be taken in redesigning the website ? do it effect on link building? I am planing to re design my website, most of the Keywords are already optimized by Google, and i have given many back links to it . After redesigning my website will it get effected? Kindly answer my question

                  Technical SEO | | PrasanthMohanachandran
                  0
                • djingel1

                  How to create a tree-like structure map of a website?

                  Hi all, The online marketing manager requested to make a tree-like map of the website. He means that he would like to see a graphical representation of the website and his contents. This way we will be able to see if there are internal link issues. The problem is that there are thousands of pages and many subdomains, manual labour would make this a very tedious task. If you would get this question, how would you try to solve this? Any software recommendation?

                  Technical SEO | | djingel1
                  0
                • RiceMedia

                  Does 'framing' a website create duplicate content?

                  Something I have not come across before, but hope others here are able offer advice based on experience: A client has independently created a series of mini-sites, aimed at targeting specific locations.  The tactic has worked very well and they have achieved a large amount of well targeted traffic as a result. Each mini-site is different but then in the nav, if you want to view prices or go to the booking page, that then links to what at first appears to be their main site. However, you then notice that the URL is actually situated on the mini-site.  What they have done is 'framed' the main site so that it appears exactly the same even when navigating through this exact replica site. Checking the code, there is almost nothing there - in fact there is actually no content at all.  Below the head, there is a piece of code: <frameset rows="*" framespacing=0 frameborder=0> <frame src="[http://www.example.com](view-source:http://www.yellowskips.com/)" frameborder=0 marginwidth=0 marginheight=0> <noframes>Your browser does not support frames. Click [here](http://www.example.com) to view.noframes> frameset> Given that main site content does not appear to show in the source code, do we have an issue with duplicate content?  This issue is that these 'referrals' are showing in Analytics, despite the fact that the code does not appear in the source, which is slightly confusing for me. They have done this without consultation and I'm very concerned that this could potentially be creating duplicate content of their ENTIRE main site on dozens of mini-sites. I should also add that there are no links to the mini-sites from the main site, so if you guys advise that this is creating duplicate content, I would not be worried about creating a link-wheel if I advise them to link directly to the main site rather than the framed pages. Thanks!

                  Technical SEO | | RiceMedia
                  0
                • flowsimple

                  If a redirecting URL has more value than the website should I move it?

                  Client has two website addresses: Website A is a redirect to Website B. It has one indexed page. But this is the URL being used in collateral. It has the majority of back links, and citations everywhere list Website A as the URL. Website B is where the actual website lives. Google recognizes and indexes the 80+ pages. This website has very few backlinks going to it. This setup does not seem good for SEO. Moreover, the analytics data is completely messed up because Website B shows that the biggest referral source is... you guessed it Website A. I'm thinking going forward, I should: Move all the content from Website B to Website A. Setup Website B to permanently 301 Redirect to Website A. Is that the best course of action?

                  Technical SEO | | flowsimple
                  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
                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.