• majorAlexa

        See all notifications

        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.

          Let your business shine with Listings AI
          Moz Local

          Let your business shine with Listings AI

          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

          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
        • My Q&A
        • 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. Research & Trends
        3. Algorithm Updates
        4. Sub-domain with spammy content and links: Any impact on main website rankings?

        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.

        Sub-domain with spammy content and links: Any impact on main website rankings?

        Algorithm Updates
        3
        2
        656
        Loading More Posts
        • Watching

          Notify me of new replies.
          Show question in unread.

        • Not Watching

          Do not notify me of new replies.
          Show question in unread if category is not ignored.

        • Ignoring

          Do not notify me of new replies.
          Do not show question in unread.

        • Oldest to Newest
        • Newest to Oldest
        • Most Votes
        Reply
        • Reply as question
        Locked
        This topic has been deleted. Only users with question management privileges can see it.
        • vtmoz
          vtmoz last edited by

          Hi all,

          One of our sub-domains is forums. Our users will be discussing about our product and many related things. But some of the users in forum are adding a lot of spammy content everyday. I just wonder whether this scenario is ruining our ranking efforts of main website? A sub domain with spammy content really kills the ranking of main website?

          Thanks

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

            Hi vtmoz,

            I see you have posted an updated question on this issue separately - regarding the spammy inbound links pointing to this subdomain. That is a more likely problem for your site.

            That said, the more spam that shows up on that subdomain, the more likely Google is to seeing your site as part of a "bad neighborhood" of the web, and this could risk the organic visibility of your root domain.

            There is no documentation on "how much spammy content is too much" - generally, some spammy content on a subdomain doesn't negatively impact the entire domain. However I have seen cases where an entire domain was negatively impacted by a very large number of spammy pages on various subdomains. It's a matter of scale.

            If your rankings and traffic on your primary domain are important, my advice would be to mitigate the risk by either policing the content on your forum subdomains by bringing in admins, or shutting down the forums entirely.

            Best,
            Mike

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

            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

            • BFMichael

              Does an EAT score on my YMYL site impact my rankings?

              I've read some conflicting information on YMYL and EAT.  If the Google Quality Raters are out there reviewing YMYL pages and scoring them on EAT, does that site's score have an impact on that page's/site's ranking?

              Algorithm Updates | | BFMichael
              0
            • rwat

              Can 'Jump link'/'Anchor tag' urls rank in Google for keywords?

              E.g. www.website.com/page/#keyword-anchor-text Where the part after the # is a section of the page you can jump to, and the title of that section is a secondary keyword you want the page to rank for?

              Algorithm Updates | | rwat
              0
            • vtmoz

              Google ranking impact: Returning visitor vs New visitor

              Hi all, If a website's traffic increase in "New visitors"; will this impact rankings? Do the website overall traffic affect rankings? How much this is related with ranking improvement for main keywords? Just because thousands of visits increased for website, will it count as a strong ranking improvement signal? Thanks

              Algorithm Updates | | vtmoz
              0
            • Eyah

              Exact Keywords Domain name

              Hello everyone!, I would love to have your opinion on this matter. I am working on a company e-commerce site; these guys would like to change their domain name AND their company name, so the most logical thing that came to mind was to name the domain after the company name. However, they also bought in the past a domain that have the exact keyword they would like to rank for. I know that keywords in the URL are not as important as they used to be in the past, but nonetheless when I do a Google search for those keywords, 3 domains out of 10 on the first page are slight variations of those same keywords, meaning that they might have a really good domain name (also the other result are government, medical stuff and so on). And, no matter how many times I have read that keywords in the URL are not so important anymore, I still see a lot of sites ranking also because of their domain name (well at least outside the US) So, my question here is: would it be better for them to use the exact match keyword-domain name or should they use their company name for their new site? Or some sort combination of the two? (the keyword-domain that in some way points also to the brand domain). Thanks for your opinions on this; really appreciate it! Cheers

              Algorithm Updates | | Eyah
              0
            • goforgreen

              Excessive internal links. Should I remove the footer links?

              Hi guys, I have an ecommerce site selling eco-friendly items online. I ran some on-page optimisation reports from SEOMoz PRO and discovered that I have at least 120 internal links per page. 32 of these are in the footer, designed in part to aid user navigation but perhaps also to have a positive impact on SERPs and SEO in general for the ecommerce site. Will removing these links be beneficial to my search engine rankings, as I will have less than 100 internal links per page? Or is it a major change which may be dangerous for my site rankings? Please help as I'm not sure about this! I've attached an image of the footer links below. I won't be removing the Facebook/Twitter links, just the 3 columns on the left. Thank you, Pravin MAvLe.jpg

              Algorithm Updates | | goforgreen
              0
            • HelpingHandNetwork

              How do you block incoming links to your site?

              With the new update to google focusing on link spam and multiple anchor text ? If you have incoming links that you would like to block or make no follow?

              Algorithm Updates | | HelpingHandNetwork
              1
            • WhiteCap

              Sub-Links of Organic SERP

              I would like to know if you can modify (or suggest) the sub-links under an organic listing.  For Example: Main Link/Title = COMPANY NAME - What We Do.... Sub-Links (popular pages within site) currently include links like: Locations / Catalog Request / Bestsellers Is it possible to suggest other pages as sub-links or do the search engines determine these? Please advise, and thanks in advance....

              Algorithm Updates | | WhiteCap
              0
            • d4online

              Rankings changing every couple of MINUTES in Google?

              We've been experiencing some unusual behaviour in the Google.co.uk SERPs recently... Basically, the ranking of some of our websites for certain keywords appears to be changing by the minute. For example, doing a search for "our keyword" might show us at #20. Then a few minutes later, doing the same search shows us at #14, and then the same search a few minutes later shows us at #26, and then sometimes we're not ranked at all, etc etc. I know the algorithm changes a lot, but does it really change every couple of minutes? Has anyone else experienced this kind of behaviour in the SERPs? What could be causing it to happen?

              Algorithm Updates | | d4online
              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.