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.

      Enhance Keyword Discovery with Bulk Analysis
      Moz Pro

      Enhance Keyword Discovery with Bulk Analysis

      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.

      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

      Access 20 years of data with flexible pricing
      Moz API

      Access 20 years of data with flexible pricing

      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. SEO Tactics
    3. Intermediate & Advanced SEO
    4. When creating a sub-domain, does that sub-domain automatically start with the DA of the main domain?

    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.

    When creating a sub-domain, does that sub-domain automatically start with the DA of the main domain?

    Intermediate & Advanced SEO
    5
    5
    2187
    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.
    • Saba.Elahi.M.
      Saba.Elahi.M. Subscriber last edited by

      We have a website with a high DA and we are considering sub-folder or sub-domain. One of the great benefits of a sub-folder is that we know we get to keep the high DA, is this also the case for sub-domains?

      Also if you could provide any sources of information that specify this, I can't see to find anything!

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

        I would go with a sub-folder if passing DA is your goal. As far as I understand it, DA is not considered by Moz for sub-domains. Here is a similar post on the same topic. I hope it helps.

        https://moz.com/community/q/is-moz-da-inherited-from-tld-for-all-subdomains-on-the-tld https://moz.com/community/q/is-there-a-way-to-get-the-domain-authority-of-a-subdomain

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

          **Also, although I would also be curious to know if a subdomain inherits DA from the main domain, it probably doesn't need to be a part of the decision making process for choosing between subdomain and subfolder.  **

          I know that the sub & parent share the same DA. I was under the impression that one doesn't necessarily inherit the other DA, just an accumulation of the "strength" calculated by Moz of the domain shared between the parent & subs.

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

            I agree with EGOL, if you have the choice, use subfolders instead of subdomains.

            I know sometimes, there are development reasons why a company decides to move forward with subdomains. And those can rank just fine too. It's just best to let decision makers know that the SEO department is voting for subfolders.

            Also, although I would also be curious to know if a subdomain inherits DA from the main domain, it probably doesn't need to be a part of the decision making process for choosing between subdomain and subfolder.  As EGOL said, "ranking ability and DA are different things", so the DA passed through or not passed through to a subdomain will not be the reason for ranking well or not in Google.

            1 Reply Last reply Reply Quote 2
            • EGOL
              EGOL last edited by

              In the question between a subfolder and a subdomain...  it is clear and it is murky...

              Search engines say things and often do the things that they say.  They also do things without sayin' that they did them and you are left to figure out what happened or how things work on your own.

              If you have been running websites for a long time (24 years here), you might know that Google and other search engines have treated subdomains and folders differently,  identically and murkily.   It depends upon what year and month you are talking about.

              **The constant is that subfolders have always inherited ranking ability from their parent domain, and will likely do that into the future.  **

              So, if you want assurance into the future, using a subfolder is your best bet.

              Looking at DA... it is irrelevant in the subdomain and subfolder discussion.  DA is a moz number that kinda correlates with search engine rankings, but just part of the time.   Ranking ability and DA are different things.

              1 Reply Last reply Reply Quote 4
              • 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

              • jgoehring-troy

                Is domain authority lost if you create a 301 redirect but mark it as noindex, nofollow?

                Hi everyone, Our company sells products in various divisions. While we've been selling Product A and Product B under our original brand, we've recently created a new division with a new domain to focus on a Product B. The new domain has virtually no domain authority (3) while the original domain has some (37). We want customers to arrive on the new domain when they search for key search terms related to Product B instead of the pages that previously existed on our main website. If we create 301 redirects for the pages and content on the main site and add noindex, nofollow tags, will we lose the domain authority that we have from our original domain because the pages now have the noindex, nofollow tags? I read a few blog posts from Moz that said there isn't any domain authority lost with 301 redirects but I'm not sure if that is true if the pages are noindex, nonofollow.   Do you follow?  🙂 Apologies for the lengthy post. Love this community and the great Moz team. Thanks, Joe

                Intermediate & Advanced SEO | | jgoehring-troy
                0
              • Chris8198

                301 Redirecting from domain to subdomain

                We're taking on a redesign of our corporate site on our main domain.  We also have a number of well established, product based subdomains. There are a number of content pages that currently live on the corporate site that rank well, and bring in a great deal of traffic, though we are considering placing 301 redirects in place to point that traffic to the appropriate pages on the subdomains. If redirected correctly, can we expect the SEO value of the content pages currently living on the corporate site to transfer to the subdomains, or will we be negatively impacting our SEO by transferring this content from one domain to multiple subdomains?

                Intermediate & Advanced SEO | | Chris8198
                0
              • Carissamay

                Why is my domain authority still 1?

                I changed the domain of my website from www.vanillacrush.co.uk to www.carissamay.co.uk at the end of December and yet my DA for carissamay is still 1. As advised, I set up a 301 redirect from VC to CM which seems to be working fine. However when I check on redirect detective it tells me I also have a 302 set up. Could this be confusing things? http://www.vanillacrush.co.uk http://www.vanillacrush.co.uk/ http://www.carissamay.co.uk Any help would be greatly appreciated! Many thanks

                Intermediate & Advanced SEO | | Carissamay
                0
              • daedriccarl

                Changing domain for a magento store

                Hi all, wondering if i could gather some views on the best approach for this please... We currently have a magento site up with about 150,000 pages (although only 9k indexed in Google as product pages are set to no index by default until the default manufacturer description has been rewritten). The indexed pages are mainly category pages, filtering options and a few search results. While none of the internal pages have massive DA - seem to average about 18-24 which isn't too bad for internal pages, I guess - I would like to transfer as much of this over to the new domain. My question is, is it really feasible to have an htaccess with about 10,000 301 redirects on the current domain? The server is pretty powerful so could probably serve the file without issue but would Google be happy with that? Would it be better to use the change url option in WMT instead. Ive never used that so not sure how that would work in this cause. Would it redirect users too? As a footnote, the site is changing because of branding reasons and not because of a penalty of the site. Thanks, Carl

                Intermediate & Advanced SEO | | daedriccarl
                0
              • RobSchofield

                How to tell the date a link was created

                Does anybody know of a website that can let you know when an external link was created to a site? Or any other way of finding this info out. Thanks

                Intermediate & Advanced SEO | | RobSchofield
                0
              • Avinashmb

                Buying a domain banned by google

                Hi , I came across a super domain for my business but found out that it was a great domain with 100s of link backs but is now banned by Google search engine meaning Google does not index content from that domain. Since the domains linkbacks are from my domin does it make sense to but that domain and redirect those link backs to another (301) and hope that the new domain gets some juice ... I know it is sounding crazy and may not be the best thing to do ethically but still wanted to check if its possible to get some juice.. Rgds Avinash

                Intermediate & Advanced SEO | | Avinashmb
                0
              • djlaidler

                How do I list the subdomains of a domain?

                Hi Mozers, I am trying to find what subdomains are currently active on a particular domain. Is there a way to get a list of this information? The only way I could think of doing it is to run a google search on; site:example.com -site:www.example.com The only issues with this approach is that a majority of the indexed pages exist on the non-www domain and I still have thousands of pages in the results (mainly from the non-www). Is there another way to do it in Google? OR is there a server admin online tool that will tell me this information? Cheers, Dan

                Intermediate & Advanced SEO | | djlaidler
                0
              • knielsen

                SEO value in multiple backlinks from same domain and from various sub-domains.

                A site has a link to my site as one of their main tabs, which means whenever a user clicks through to another page within the site, my link - being a main tab - is there. This creates thousands of links from this site. How does Google treat this? Do we have a rough formula estimate. In other words, assume it creates 1,000 backlinks would the SEO value be around the same as if I had just 2 link total as a main tab, but on 2 different non-related sites? Or, does it actually count fully as 1,000 links? Links from various sub-domains. Several .EDU's are linking to my site. Different schools within the overall same university. Example: nursing.abc.edu links to my site, but so does business.abc.edu. For SEO does that count as much as if I had links from complete non-related universities, or would Google evaluate that these links are related (since same main domain) and that will discount any links more than 1 to some extent? If discounted, then what do we estimate the discount to be? thank yoyu

                Intermediate & Advanced SEO | | knielsen
                1

              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.