• 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 reputation grow with Reviews AI
          Moz Local

          Let your reputation grow with Reviews 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. 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
        2883
        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

                              • nchlondon

                                Directory with Duplicate content? what to do?

                                Moz keeps finding loads of pages with duplicate content on my website. The problem is its a directory page to different locations. E.g if we were a clothes shop we would be listing our locations: www.sitename.com/locations/london www.sitename.com/locations/rome www.sitename.com/locations/germany The content on these pages is all the same, except for an embedded google map that shows the location of the place. The problem is that google thinks all these pages are duplicated content. Should i set a canonical link on every single page saying that www.sitename.com/locations/london is the main page? I don't know if i can use canonical links because the page content isn't identical because of the embedded map. Help would be appreciated. Thanks.

                                Intermediate & Advanced SEO | | nchlondon
                                0
                              • AMHC

                                Removing duplicate content

                                Due to URL changes and parameters on our ecommerce sites, we have a massive amount of duplicate pages indexed by google, sometimes up to 5 duplicate pages with different URLs. 1. We've instituted canonical tags site wide. 2. We are using the parameters function in Webmaster Tools. 3. We are using 301 redirects on all of the obsolete URLs 4. I have had many of the pages fetched so that Google can see and index the 301s and canonicals. 5. I created HTML sitemaps with the duplicate URLs, and had Google fetch and index the sitemap so that the dupes would get crawled and deindexed. None of these seems to be terribly effective. Google is indexing pages with parameters in spite of the parameter (clicksource) being called out in GWT. Pages with obsolete URLs are indexed in spite of them having 301 redirects. Google also appears to be ignoring many of our canonical tags as well, despite the pages being identical. Any ideas on how to clean up the mess?

                                Intermediate & Advanced SEO | | AMHC
                                0
                              • GSO

                                Should I be using meta robots tags on thank you pages with little content?

                                I'm working on a website with hundreds of thank you pages, does it make sense to no follow, no index these pages since there's little content on them? I'm thinking this should save me some crawl budget overall but is there any risk in cutting out the internal links found on the thank you pages? (These are only standard site-wide footer and navigation links.) Thanks!

                                Intermediate & Advanced SEO | | GSO
                                0
                              • ntcma

                                Should I use meta noindex and robots.txt disallow?

                                Hi, we have an alternate "list view" version of every one of our search results pages The list view has its own URL, indicated by a URL parameter I'm concerned about wasting our crawl budget on all these list view pages, which effectively doubles the amount of pages that need crawling When they were first launched, I had the noindex meta tag be placed on all list view pages, but I'm concerned that they are still being crawled Should I therefore go ahead and also apply a robots.txt disallow on that parameter to ensure that no crawling occurs? Or, will Googlebot/Bingbot also stop crawling that page over time? I assume that noindex still means "crawl"... Thanks 🙂

                                Intermediate & Advanced SEO | | ntcma
                                0
                              • browndoginteractive

                                Avoiding Duplicate Content with Used Car Listings Database: Robots.txt vs Noindex vs Hash URLs (Help!)

                                Hi Guys, We have developed a plugin that allows us to display used vehicle listings from a centralized, third-party database. The functionality works similar to autotrader.com or cargurus.com, and there are two primary components: 1. Vehicle Listings Pages: this is the page where the user can use various filters to narrow the vehicle listings to find the vehicle they want.
                                2. Vehicle Details Pages: this is the page where the user actually views the details about said vehicle. It is served up via Ajax, in a dialog box on the Vehicle Listings Pages. Example functionality:  http://screencast.com/t/kArKm4tBo The Vehicle Listings pages (#1), we do want indexed and to rank. These pages have additional content besides the vehicle listings themselves, and those results are randomized or sliced/diced in different and unique ways. They're also updated twice per day. We do not want to index #2, the Vehicle Details pages, as these pages appear and disappear all of the time, based on dealer inventory, and don't have much value in the SERPs. Additionally, other sites such as autotrader.com, Yahoo Autos, and others draw from this same database, so we're worried about duplicate content. For instance, entering a snippet of dealer-provided content for one specific listing that Google indexed yielded 8,200+ results:  Example Google query. We did not originally think that Google would even be able to index these pages, as they are served up via Ajax. However, it seems we were wrong, as Google has already begun indexing them. Not only is duplicate content an issue, but these pages are not meant for visitors to navigate to directly! If a user were to navigate to the url directly, from the SERPs, they would see a page that isn't styled right. Now we have to determine the right solution to keep these pages out of the index:  robots.txt, noindex meta tags, or hash (#) internal links. Robots.txt Advantages: Super easy to implement Conserves crawl budget for large sites Ensures crawler doesn't get stuck. After all, if our website only has 500 pages that we really want indexed and ranked, and vehicle details pages constitute another 1,000,000,000 pages, it doesn't seem to make sense to make Googlebot crawl all of those pages. Robots.txt Disadvantages: Doesn't prevent pages from being indexed, as we've seen, probably because there are internal links to these pages. We could nofollow these internal links, thereby minimizing indexation, but this would lead to each 10-25 noindex internal links on each Vehicle Listings page (will Google think we're pagerank sculpting?) Noindex Advantages: Does prevent vehicle details pages from being indexed Allows ALL pages to be crawled (advantage?) Noindex Disadvantages: Difficult to implement (vehicle details pages are served using ajax, so they have no tag. Solution would have to involve X-Robots-Tag HTTP header and Apache, sending a noindex tag based on querystring variables, similar to this stackoverflow solution. This means the plugin functionality is no longer self-contained, and some hosts may not allow these types of Apache rewrites (as I understand it) Forces (or rather allows) Googlebot to crawl hundreds of thousands of noindex pages.  I say "force" because of the crawl budget required.  Crawler could get stuck/lost in so many pages, and my not like crawling a site with 1,000,000,000 pages, 99.9% of which are noindexed. Cannot be used in conjunction with robots.txt. After all, crawler never reads noindex meta tag if blocked by robots.txt Hash (#) URL Advantages: By using for links on Vehicle Listing pages to Vehicle Details pages (such as "Contact Seller" buttons), coupled with Javascript, crawler won't be able to follow/crawl these links.  Best of both worlds:  crawl budget isn't overtaxed by thousands of noindex pages, and internal links used to index robots.txt-disallowed pages are gone. Accomplishes same thing as "nofollowing" these links, but without looking like pagerank sculpting (?) Does not require complex Apache stuff Hash (#) URL Disdvantages: Is Google suspicious of sites with (some) internal links structured like this, since they can't crawl/follow them? Initially, we implemented robots.txt--the "sledgehammer solution." We figured that we'd have a happier crawler this way, as it wouldn't have to crawl zillions of partially duplicate vehicle details pages, and we wanted it to be like these pages didn't even exist. However, Google seems to be indexing many of these pages anyway, probably based on internal links pointing to them. We could nofollow the links pointing to these pages, but we don't want it to look like we're pagerank sculpting or something like that. If we implement noindex on these pages (and doing so is a difficult task itself), then we will be certain these pages aren't indexed. However, to do so we will have to remove the robots.txt disallowal, in order to let the crawler read the noindex tag on these pages. Intuitively, it doesn't make sense to me to make googlebot crawl zillions of vehicle details pages, all of which are noindexed, and it could easily get stuck/lost/etc. It seems like a waste of resources, and in some shadowy way bad for SEO. My developers are pushing for the third solution:  using the hash URLs. This works on all hosts and keeps all functionality in the plugin self-contained (unlike noindex), and conserves crawl budget while keeping vehicle details page out of the index (unlike robots.txt). But I don't want Google to slap us 6-12 months from now because it doesn't like links like these (). Any thoughts or advice you guys have would be hugely appreciated, as I've been going in circles, circles, circles on this for a couple of days now. Also, I can provide a test site URL if you'd like to see the functionality in action.

                                Intermediate & Advanced SEO | | browndoginteractive
                                0
                              • HiteshBharucha

                                Duplicate content on subdomains.

                                Hi Mozer's, I have a site www.xyz.com and also geo targeted sub domains www.uk.xyz.com, www.india.xyz.com and so on. All the sub domains have the content which is same as the content on the main domain that is www.xyz.com. So, I want to know how can i avoid content duplication. Many Thanks!

                                Intermediate & Advanced SEO | | HiteshBharucha
                                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
                              • joseph.chambers

                                Duplicate Content | eBay

                                My client is generating templates for his eBay template based on content he has on his eCommerce platform. I'm 100% sure this will cause duplicate content issues. My question is this.. and I'm not sure where eBay policy stands with this but adding the canonical tag to the template.. will this work if it's coming from a different page i.e. eBay? Update: I'm not finding any information regarding this on the eBay policy's: http://ocs.ebay.com/ws/eBayISAPI.dll?CustomerSupport&action=0&searchstring=canonical So it does look like I can have rel="canonical" tag in custom eBay templates but I'm concern this can be considered: "cheating" since rel="canonical is actually a 301 but as this says: http://googlewebmastercentral.blogspot.com/2009/12/handling-legitimate-cross-domain.html it's legitimately duplicate content. The question is now: should I add it or not? UPDATE seems eBay templates are embedded in a iframe but the snap shot on google actually shows the template. This makes me wonder how they are handling iframes now. looking at http://www.webmaster-toolkit.com/search-engine-simulator.shtml does shows the content inside the iframe. Interesting. Anyone else have feedback?

                                Intermediate & Advanced SEO | | joseph.chambers
                                1

                              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.