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

      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. On-Page Optimization
    4. Harms of hidden categories on SEO

    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.

    Harms of hidden categories on SEO

    On-Page Optimization
    4
    4
    1401
    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.
    • CostumeD
      CostumeD last edited by

      On our website we have some invisible/hidden categories on our site. Can anyone advise whether these are harmful in terms of SEO?

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

        You could legitimately have hidden content in terms of category/URLs - maybe only made available if you sign up as an example.  The guidelines are referring to manipulating on page content so there are elements within that page that are hidden and by default manipulating.

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

          Firstly I cannot actually think of any legitimate reason for hiding or making a category invisible, however if you had one that means you don’t want the content to be indexed then you would be best blocking that Category within your robots.txt file.

          If it is for any other reason and the content is indexable by ANY search engine not just Google then you run the risk of being penalised.

          In fact, Google’s guidelines state that, “hiding text or links in your content to manipulate Google’s search rankings can be seen as deceptive and is a violation of Google’s Webmaster Guidelines

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

            Invisible to who?  If they are invisible to the search engines (e.g. blocked via robots.txt) they could not be harmful, but if you gain any link or other quality equity through those pages, your will not get any additional domain authority or organic traffic to them.

            That said, if the hidden categories were resorts of the main categories on your site then you would want to hide them from the search engine as they would be seen as low quality duplicate content.  Otherwise if they were visible they could negatively impact your site.

            1 Reply Last reply Reply Quote 1
            • 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

            • xtrapsp

              Should posts show in multiple categories?

              seo wordpress

              Hi all, For context, I'm trying to Silo my content more efficiently. I've just moved all content into their own SILO'd categories and removed them from duplicate categories. As such, posts now sit only in 1 category. My question here is: Should my posts be showing in both the parent category and its sub category or just the sub-category? I've currently got this only showing in the sub-categories it's relevant to. For example:
              Post name: Shimano Fishing Rod Review
              Parent Category: Fishing Rods
              Sub Category: Shimano And the post only shows inside the Shimano Category

              On-Page Optimization | | xtrapsp
              0
            • TheresaWoods

              OnPage SEO

              I am about to start my website http://i-love-skiing.com/. I would like to know what OnPage ranking factors should I consider while launching or building my website. I want to rank higher on search results.

              On-Page Optimization | | TheresaWoods
              0
            • bedynamic

              Using h2 for category on ecommerce website

              Hi, I am working on an ecommerce site and the main category - lets call them car widgets - is using a h1 at the top of the page which is great.  There are 4 sub categories on the page - lets call one of them red widget.  The only content on the page is the sub category name and an image.  Should the sub category red widget use a h2? Thanks S

              On-Page Optimization | | bedynamic
              0
            • davidkaralisjr

              Do Blog Tags affect SEO at all anymore?

              We're trying to standardize the use of tags on our site amongst writers/editors, and I'm trying to come up a list of tags they can choose from to tag posts with - and telling them to use no more than 10 (absolute maximum) per post. We are also in the process of migrating to a new CMS, and have 8 defined categories that will all have their own landing page within our "News" section. TLDR: Do blog tags have any impact on SEO anymore? Are they solely meant to help users find articles related on popular topics, or does creating a tag for a popular topic help to improve organic visibility? Full Question: With the tag standardization, I want to make sure we're creating the most useful and effective tags; and the UX/SEO sides of my brain are conflicted. To my understanding, creating a tag about a high volume topic in an industry helps establish the website's relevance to Google/other search engines about that topic and improves overall relevance; but the tag feed page (ex: http://freshome.com/tag/home-protection/) isn't really meant for organic search visibility. So my other question is, is it worth it to noindex the tag pages in the robots.txt? Will that affect any benefit to increased relevance for Google (if there is any)? I'm interested to hear others' thoughts and suggestions. Thanks in advance!

              On-Page Optimization | | davidkaralisjr
              0
            • tprg

              Home page and category page target same keyword

              Hi there, Several of our websites have a common problem - our main target keyword for the homepage is also the name of a product category we have within the website. There are seemingly two solutions to this problem, both of which not ideal: Do not target the keyword with the homepage. However, the homepage has the most authority and is our best shot at getting ranked for the main keyword. Reword and "de-optimise" the category page, so it doesn't target the keyword. This doesn't work well from UX point of view as the category needs to describe what it is and enable visitors to navigate to it. Anybody else gone through a similar conundrum? How did you end up going about it? Thanks Julian

              On-Page Optimization | | tprg
              0
            • seom2014

              Choosing a title tag in seo (H1 or H2 or H3)

              I look many times on google that what is the best tag to set in title for seo, H1 or H2 or H3 In many forums and sites they are asking that you need to put only H2 tag in title and someone ask to put H1 in title and i am confused, Some body tell me the correct tag for seo in google, or any other search engine.

              On-Page Optimization | | seom2014
              0
            • dimanyc

              How to avoid keyword stuffing on e-Commerce Category pages

              Hi, I'm optimizing a large, consumer electronic e-commerce superstore. Based on client's choice of keywords, I'm using product category pages as my target urls. Because of the proprietary CMS structure, product names and titles, featured on my landing pages (product category pages) create a keyword overkill, affecting various ranking factors. For example, one of the target urls / landing pages, dedicated to a specific product category, mentions the keyword over 190 times because of so many product titles in the "body" section. Would inline "rel="canonical" help? If yes, what part of the website should it "canonize"? If rel="canonical" is not the answer, what strategies would you suggest? Thanks!

              On-Page Optimization | | dimanyc
              0
            • drewschmaltz

              Category Pages with Sub-Categories

              The image will explain it all...  Each category page starts on the subject of the first sub-category page.  This happens twice (well actually 3 times since this section of the site is called showroom and it starts on the tab mowers). Is this a terrible approach?  If so, how could a site like this be better navigation-ally organized. cat-subcat.png

              On-Page Optimization | | drewschmaltz
              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.