• BBgmoro

        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.

          Turn SEO data into actionable content briefs

          Turn SEO data into actionable content briefs

          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.

          Let your business shine with Listings AI

          Let your business shine with Listings AI

          Get found
        • 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
        • 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. 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
        3056
        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.
        • 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

                              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

                              • KenSchaefer

                                No Index thousands of thin content pages?

                                Hello all! I'm working on a site that features a service marketed to community leaders that allows the citizens of that community log 311 type issues such as potholes, broken streetlights, etc.  The "marketing" front of the site is 10-12 pages of content to be optimized for the community leader searchers however, as you can imagine there are thousands and thousands of pages of one or two line complaints such as, "There is a pothole on Main St. and 3rd." These complaint pages are not about the service, and I'm thinking not helpful to my end goal of gaining awareness of the service through search for the community leaders.  Community leaders are searching for "311 request service", not "potholes on main street". Should all of these "complaint" pages be NOINDEX'd?   What if there are a number of quality links pointing to the complaint pages?  Do I have to worry about losing Domain Authority if I do NOINDEX them? Thanks for any input. Ken

                                Intermediate & Advanced SEO | | KenSchaefer
                                0
                              • 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
                              • ajiabs

                                Duplicate content due to parked domains

                                I have a main ecommerce website with unique content and decent back links. I had few domains parked on the main website as well specific product pages. These domains had some type in traffic. Some where exact product names.  So main main website www.maindomain.com had domain1.com , domain2.com parked on it. Also had domian3.com parked on www.maindomain.com/product1. This caused lot of duplicate content issues. 12 months back, all the parked domains were changed to 301 redirects. I also added all the domains to google webmaster tools. Then removed main directory from google index. Now realize few of the additional domains are indexed and causing duplicate content. My question is what other steps can I take to avoid the duplicate content for my my website 1. Provide change of address in Google search console. Is there any downside in providing change of address pointing to a website? Also domains pointing to a specific url , cannot provide change of address 2. Provide a remove page from google index request in Google search console. It is temporary and last 6 months. Even if the pages are removed from Google index, would google still see them duplicates? 3. Ask google to fetch each url under other domains and submit to google index. This would hopefully remove the urls under domain1.com and doamin2.com eventually due to 301 redirects. 4. Add canonical urls for all pages in the main site. so google will eventually remove content from doman1 and domain2.com due to canonical links. This wil take time for google to update their index 5. Point these domains elsewhere to remove duplicate contents eventually. But it will take time for google to update their index with new non duplicate content. Which of these options are best best to my issue and which ones are potentially dangerous? I would rather not to point these domains elsewhere. Any feedback would be greatly appreciated.

                                Intermediate & Advanced SEO | | ajiabs
                                0
                              • MyPetWarehouse

                                Duplicate Content through 'Gclid'

                                Hello, We've had the known problem of duplicate content through the gclid parameter caused by Google Adwords. As per Google's recommendation - we added the canonical tag to every page on our site so when the bot came to each page they would go 'Ah-ha, this is the original page'. We also added the paramter to the URL parameters in Google Wemaster Tools. However, now it seems as though a canonical is automatically been given to these newly created gclid pages; below https://www.google.com.au/search?espv=2&q=site%3Awww.mypetwarehouse.com.au+inurl%3Agclid&oq=site%3A&gs_l=serp.3.0.35i39l2j0i67l4j0i10j0i67j0j0i131.58677.61871.0.63823.11.8.3.0.0.0.208.930.0j3j2.5.0....0...1c.1.64.serp..8.3.419.nUJod6dYZmI Therefore these new pages are now being indexed, causing duplicate content. Does anyone have any idea about what to do in this situation? Thanks, Stephen.

                                Intermediate & Advanced SEO | | MyPetWarehouse
                                0
                              • iQi

                                Duplicate content on recruitment website

                                Hi everyone, It seems that Panda 4.2 has hit some industries more than others. I just started working on a website, that has no manual action, but the organic traffic has dropped massively in the last few months. Their external linking profile seems to be fine, but I suspect usability issues, especially the duplication may be the reason. The website is a recruitment website in a specific industry only. However, they posts jobs for their clients, that can be very similar, and in the same time they can have 20 jobs with the same title and very similar job descriptions. The website currently have over 200 pages with potential duplicate content. Additionally, these jobs get posted on job portals, with the same content (Happens automatically through a feed). The questions here are: How bad would this be for the website usability, and would it be the reason the traffic went down? Is this the affect of Panda 4.2 that is still rolling What can be done to resolve these issues? Thank you in advance.

                                Intermediate & Advanced SEO | | iQi
                                0
                              • WebbyNabler

                                Duplicate Content From Indexing of non- File Extension Page

                                Google somehow has indexed a page of mine without the .html extension.  so they indexed  www.samplepage.com/page, so I am showing duplicate content because Google also see's  www.samplepage.com/page.html   How can I force google or bing or whoever to only index and see the page including the .html extension?  I know people are saying not to use the file extension on pages, but I want to, so please anybody...HELP!!!

                                Intermediate & Advanced SEO | | WebbyNabler
                                0
                              • monster99

                                How to Disallow Tag Pages With Robot.txt

                                Hi i have a site which i'm dealing with that has tag pages for instant - http://www.domain.com/news/?tag=choice How can i exclude these tag pages (about 20+ being crawled and indexed by the search engines with robot.txt Also sometimes they're created dynamically so i want something which automatically excludes tage pages from being crawled and indexed. Any suggestions? Cheers, Mark

                                Intermediate & Advanced SEO | | monster99
                                0
                              • nicole.healthline

                                Soft 404's from pages blocked by robots.txt -- cause for concern?

                                We're seeing soft 404 errors appear in our google webmaster tools section on pages that are blocked by robots.txt (our search result pages). Should we be concerned? Is there anything we can do about this?

                                Intermediate & Advanced SEO | | nicole.healthline
                                4

                              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 - 2026 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.