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.

      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.

      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
    • 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
    1380
    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

            • 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
            • gregvellante

              Do keywords within a dropdown menu add any SEO value?

              I haven't seen this written about in some time. Has anyone had any experience dabbling in this?

              On-Page Optimization | | gregvellante
              0
            • WallerD

              No meta description on category page

              Hi Moz is reporting no meta description on a wordpress category page like this one: http://www.dwliverpoolphotography.co.uk/category/uncategorized/ Can I add a meta description to a category? Best wishes. David.

              On-Page Optimization | | WallerD
              0
            • salvyy

              No-index all the posts of a category

              Hi everyone! I would like no-indexing all the posts of a specific category of my wordpress site. The problem is that the structure of my URL is composed without /category/: www.site-name.ext/date/post-name/
              so without /category-name/ Is possibile to disallow the indexing of all the posts of the category via robots.txt? Using Yoast Plugin I can put the no-index for each post, but I would like to put the no-index (or disallow/) a time for all the post of the category. Thanks in advance for your help and sorry for my english. Mike

              On-Page Optimization | | salvyy
              0
            • zorsto

              Is it SEO-wise to edit an already published article?

              One of the pages on the website is #7 on the first page for a highly competetive keyword. Since I would like to improve rankings and the page is not optimized (e.g. keyword density is 0), is it SEO-wise to edit an article and create a good on-page optimization? Of course, the ultimate goal is to be in TOP 3 for a specific keyword.

              On-Page Optimization | | zorsto
              1
            • ATMOSMarketing56

              SEO for Online Auto Parts Store

              I'm currently doing an audit for an online auto parts store and am having a hard time wrapping my head around their duplicate content issue. The current set up is this: The catalogue starts with the user selecting their year of vehicle They then choose their brand (so each of the year pages have listed every single brand of car, creating duplicate content) They then choose their model of car and then the engine And then this takes them to a page listing every type/category of product they sell (so each and every model type/engine size has the exact same content!) This is amounting to literally thousands of pages being seen as duplicates It's a giant mess. Is using rel=canonical the best thing to do? I'm having a hard time seeing a logical way of structuring the site to avoid this issue. Anyone have any ideas?

              On-Page Optimization | | ATMOSMarketing56
              0
            • SarahCollins

              SEO Location Pages - ALT Image Tag Question

              Hello Guru's, I have a Hire Website whereby you can rent products online. I have created different Location pages for these which are in essence the same pages  page but with different location specific urls, title tags  , on page content etc etc. This helps me to rank for local search. These location pages also display 20 products per page. My question is  Should I make the ALT IMAGE TEXT location specific for each of the 20 products  . Example -  Steam Cleaner Rental in "location" or should I only amend a few of the Atl Image Texts to be location specific. I don't want to come accross as spammy in google eyes but I also don't want to be seen as having duplicate content , images etc etc What do you think ? thanks Sarah.

              On-Page Optimization | | SarahCollins
              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
            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.