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

      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. Intermediate & Advanced SEO
    4. Could you use a robots.txt file to disalow a duplicate content page from being crawled?

    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.

    Could you use a robots.txt file to disalow a duplicate content page from being crawled?

    Intermediate & Advanced SEO
    5
    11
    2923
    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.
    • gregelwell
      gregelwell last edited by

      A website has duplicate content pages to make it easier for users to find the information from a couple spots in the site navigation. Site owner would like to keep it this way without hurting SEO.

      I've thought of using the robots.txt file to disallow search engines from crawling one of the pages. Would you think this is a workable/acceptable solution?

      1 Reply Last reply Reply Quote 0
      • KyleChamp
        KyleChamp @gregelwell last edited by

        Yeah, sorry for the confusion. I put the tag on all the pages (Original and Duplicate). I sent you a PM with another good article on Rel canonical tag

        1 Reply Last reply Reply Quote 0
        • gregelwell
          gregelwell @Dr-Pete last edited by

          Peter, Thanks for the clarification.

          1 Reply Last reply Reply Quote 0
          • Dr-Pete
            Dr-Pete Staff @anthonytjm last edited by

            Generally agree, although I'd just add that Robots.txt also isn't so great at removing content that's already been indexed (it's better at prevention). So, I find that it's not just not ideal - it sometimes doesn't even work in these cases.

            Rel-canonical is generally a good bet, and it should go on the duplicate (you can actually put it on both, although it's not necessary).

            gregelwell 1 Reply Last reply Reply Quote 1
            • gregelwell
              gregelwell @gregelwell last edited by

              Next time I'll read the reference links better 🙂

              Thank you!

              1 Reply Last reply Reply Quote 0
              • anthonytjm
                anthonytjm @gregelwell last edited by

                per google webmaster tools:

                If Google knows that these pages have the same content, we may index only one version for our search results. Our algorithms select the page we think best answers the user's query. Now, however, users can specify a canonical page to search engines by adding a element with the attribute rel="canonical" to the section of the non-canonical version of the page. Adding this link and attribute lets site owners identify sets of identical content and suggest to Google: "Of all these pages with identical content, this page is the most useful. Please prioritize it in search results."

                1 Reply Last reply Reply Quote 0
                • gregelwell
                  gregelwell @KyleChamp last edited by

                  Thanks Kyle. Anthony had a similar view on using the rel canonical tag. I'm just curious about adding it to both the original page or duplicate page? Or both?

                  Thanks,

                  Greg

                  KyleChamp 1 Reply Last reply Reply Quote 0
                  • gregelwell
                    gregelwell @anthonytjm last edited by

                    Anthony, Thanks for your response. See Kyle, he also felt using the rel canonical tag was the best thing to do. However he seemed to think you'd put it on the original page - the one you want to rank for. And you're suggesting putting on the duplicate page. Should it be added to both while specifying which page is the 'original'?

                    Thanks!

                    Greg

                    anthonytjm gregelwell 2 Replies Last reply Reply Quote 0
                    • Adam.Whittles
                      Adam.Whittles last edited by

                      I'm not sure I understand why the site owner seems to think that the duplicate content is necessary?

                      If I was in your situation I would be trying to convince the client to remove the duplicate content from their site, rather than trying to find a way around it.

                      If the information is difficult to find then this may be due to a problem with the site architecture. If the site does not flow well enough for visitors to find the information they need, then perhaps a site redesign is necessary.

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

                        Well, the answer would be yes and no. A robots.txt file would stop the bots from indexing the page, but links from other pages in site to that non indexed page could therefor make it crawlable and then indexed. AS posted in google webmaster tools here:

                        "You need a robots.txt file only if your site includes content that you don't want search engines to index. If you want search engines to index everything in your site, you don't need a robots.txt file (not even an empty one).

                        While Google won't crawl or index the content of pages blocked by robots.txt, we may still index the URLs if we find them on other pages on the web. As a result, the URL of the page and, potentially, other publicly available information such as anchor text in links to the site, or the title from the Open Directory Project (www.dmoz.org), can appear in Google search results."

                        I think the best way to avoid any conflict is applying the rel="canonical"  tag to each duplicate page that you don't want indexed.

                        You can find more info on rel canonical here

                        Hope this helps out some.

                        gregelwell Dr-Pete 2 Replies Last reply Reply Quote 2
                        • KyleChamp
                          KyleChamp last edited by

                          The best way would be to use the Rel canonical tag

                          On the page you would like to rank for put the Rel canonical tag in

                          This lets google know that this is the original page.

                          Check out this link posted by Rand about the Rel canonical tag [http://www.seomoz.org/blog/canonical-url-tag-the-most-important-advancement-in-seo-practices-since-sitemaps](http://www.seomoz.org/blog/canonical-url-tag-the-most-important-advancement-in-seo-practices-since-sitemaps)

                          gregelwell 1 Reply Last reply Reply Quote 2
                          • 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

                          • mellison

                            Should I use the on classified listing pages that have expired?

                            We have went back and forth on this and wanted to get some outside input.  I work for an online listing website that has classified ads on it.  These ads are generated by companies on our site advertising weekend events around the country. We have about 10,000 companies that use our service to generate their online ads. This means that we have thousands of pages being created each week. The ads have lots of content: pictures, sale descriptions, and company information. After the ads have expired, and the sale is no longer happening, we are currently placing the in the heads of each page. The content is not relative anymore since the ad has ended. The only value the content offers a searcher is the images (there are millions on expired ads) and the descriptions of the items for sale.  We currently are the leader in our industry and control most of the top spots on Google for our keywords. We have been worried about cluttering up the search results with pages of ads that are expired.  In our Moz account right now we currently have over 28k crawler warnings alerting us to the  being in the page heads of the expired ads. Seeing those warnings have made us nervous and second guessing what we are doing. Does anybody have any thoughts on this? Should we continue with placing the  in the heads of the expired ads, or should we be allowing search engines to index the old pages.  I have seen websites with discontinued products keeping the products around so that individuals can look up past information. This is the closest thing have seen to our situation. Any help or insight would be greatly appreciated! -Matt

                            Intermediate & Advanced SEO | | mellison
                            0
                          • ThomasHarvey

                            Large robots.txt file

                            We're looking at potentially creating a robots.txt with 1450 lines in it. This will remove 100k+ pages from the crawl that are all old pages (I know, the ideal would be to delete/noindex but not viable unfortunately) Now the issue i'm thinking is that a large robots.txt will either stop the robots.txt from being followed or will slow our crawl rate down. Does anybody have any experience with a robots.txt of that size?

                            Intermediate & Advanced SEO | | ThomasHarvey
                            0
                          • jyoung222

                            How to resolve duplicate content issues when using Geo-targeted Subfolders to seperate US and CAN

                            A client of mine is about to launch into the USA market (currently only operating in Canada) and they are trying to find the best way to geo-target.  We recommended they go with the geo-targeted subfolder approach (___.com and ___.com/ca). I'm looking for any ways to assist in not getting these pages flagged for duplicate content. Your help is greatly appreciated. Thanks!

                            Intermediate & Advanced SEO | | jyoung222
                            0
                          • Rubix

                            Do you add 404 page into robot file or just add no index tag?

                            Hi, got different opinion on this so i wanted to double check with your comment is. We've got /404.html page and I was wondering if you would add this page to robot text so it wouldn't be indexed or would you just add no index tag? What would be the best approach? Thanks!

                            Intermediate & Advanced SEO | | Rubix
                            0
                          • knielsen

                            Copying my Facebook content to website considered duplicate content?

                            I write career advice on Facebook on a daily basis. On my homepage users can see the most recent 4-5 feeds (using FB social media plugin). I am thinking to create a page on my website where visitors can see all my previous FB feeds. Would this be considered duplicate content if I copy paste the info, but if I use a Facebook social media plugin then it is not considered duplicate content? I am working on increasing content on my website and feel incorporating FB feeds would make sense. thank you

                            Intermediate & Advanced SEO | | knielsen
                            0
                          • 360eight-SEO

                            News sites & Duplicate content

                            Hi SEOMoz I would like to know, in your opinion and according to 'industry' best practice, how do you get around duplicate content on a news site if all news sites buy their "news" from a central place in the world? Let me give you some more insight to what I am talking about. My client has a website that is purely focuses on news. Local news in one of the African Countries to be specific. Now, what we noticed the past few months is that the site is not ranking to it's full potential. We investigated, checked our keyword research, our site structure, interlinking, site speed, code to html ratio you name it we checked it. What we did pic up when looking at duplicate content is that the site is flagged by Google as duplicated, BUT so is most of the news sites because they all get their content from the same place. News get sold by big companies in the US (no I'm not from the US so cant say specifically where it is from) and they usually have disclaimers with these content pieces that you can't change the headline and story significantly, so we do have quite a few journalists that rewrites the news stories, they try and keep it as close to the original as possible but they still change it to fit our targeted audience - where my second point comes in. Even though the content has been duplicated, our site is more relevant to what our users are searching for than the bigger news related websites in the world because we do hyper local everything. news, jobs, property etc. All we need to do is get off this duplicate content issue, in general we rewrite the content completely to be unique if a site has duplication problems, but on a media site, im a little bit lost. Because I haven't had something like this before. Would like to hear some thoughts on this. Thanks,
                            Chris Captivate

                            Intermediate & Advanced SEO | | 360eight-SEO
                            0
                          • Visually

                            Are there any negative effects to using a 301 redirect from a page to another internal page?

                            For example, from http://www.dog.com/toys to http://www.dog.com/chew-toys. In my situation, the main purpose of the 301 redirect is to replace the page with a new internal page that has a better optimized URL. This will be executed across multiple pages (about 20). None of these pages hold any search rankings but do carry a decent amount of page authority.

                            Intermediate & Advanced SEO | | Visually
                            0
                          • kylesuss

                            Block an entire subdomain with robots.txt?

                            Is it possible to block an entire subdomain with robots.txt? I write for a blog that has their root domain as well as a subdomain pointing to the exact same IP. Getting rid of the option is not an option so I'd like to explore other options to avoid duplicate content. Any ideas?

                            Intermediate & Advanced SEO | | kylesuss
                            12

                          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.