• seohunters9

        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 business shine with Listings AI
          Moz Local

          Let your business shine with Listings 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. Any penalty for having rel=canonical tags on every page?

        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.

        Any penalty for having rel=canonical tags on every page?

        Intermediate & Advanced SEO
        7
        11
        9476
        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.
        • mhans
          mhans last edited by

          For some reason every webpage of our website (www.nathosp.com)  has a rel=canonical tag. I'm not sure why the previous SEO manager did this, but we don't have any duplicate content that would require a canonical tag.

          Should I remove these tags? And if so, what's the advantage - or disadvantage of leaving them in place?

          Thank you in advance for your help.

          -Josh Fulfer

          1 Reply Last reply Reply Quote 1
          • John-VS
            John-VS last edited by

            There isn't a direct penalty for having rel="canonical" tags on every page, no, as long as you are correctly utilizing them (i.e. don't set the href of the tag to an invalid or non-existent URL). If there is even the possibility of duplicate content on your website, it is best to use canonical tags.

            For websites serving straight HTML files, both http://www.example.com/index.html and http://www.example.com/ likely serve the same content.

            If you use a framework like ASP.NET MVC, it would by default return duplicate content for both http://www.example.com/ and http://www.example.com/Home/Index.

            Choose one or the other and set your canonical tag to that:

            (note: the trailing slash is optional - just be consistent with including it or not)

            1 Reply Last reply Reply Quote 0
            • AlanMosley
              AlanMosley @gfiorelli1 last edited by

              You can use a canonical tag on page A, to point to A, telling that this is the original, teh reason for this is when people scrape your site they will point back home.

              i belive thats is what they were getting at

              you would only point it at B if B was a duplicate.

              1 Reply Last reply Reply Quote 0
              • mhans
                mhans @RyanKent last edited by

                Ryan - I appreciate your help. My initial thought too was that I could remove it to clean up the code. However, I was unaware that the tag helps with dynamically generated pages - which ours are.

                Thank you for your thorough response.

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

                  as far as i can see josh, the canonical URLs on your site are doing what they should be doing. I havn't looked to deep into it, but it seems like your products all refer back to product category pages, so that is the right way to use them.

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

                    I have never heard of anyone being penalised for having it on every page. Plus I can't see that ever happening unless it has been implemented incorrectly of course.

                    1 Reply Last reply Reply Quote 1
                    • fourthdimensioninc
                      fourthdimensioninc @gfiorelli1 last edited by

                      page A has content about apples. page B has content about bubblegum. Canonical tag states that page B should refer to page A. What is the point of that? all link juice, all ranking potential is passed to page A, even though page B has very different content. So page A MIGHT appear in search results about bubblegum, but page B will not because it is passing all link juice and rank potential to page A about apples. People stop going to page A when looking for bubblegum because it is irrelevant, and bounce rates increase.

                      Dont think you need documentation to get this. If you have all pages redirecting bots via canonical urls to the SAME page, it is pointless. If you have several article about apples and point them all to page A that is a different story.

                      1 Reply Last reply Reply Quote 1
                      • AlanMosley
                        AlanMosley @fourthdimensioninc last edited by

                        not sure what you mean here, I have a canonical on every page, I program my sites to dynamicly to do, the reason i do so, is if someone scraps a page, it will have my address in the canonical tag.

                        I dont know what you mean by not relative to the tag. it just a href, are we talking about the same thing?

                        rel="canonical" href=http://mydomain.com/>

                        1 Reply Last reply Reply Quote 0
                        • gfiorelli1
                          gfiorelli1 @fourthdimensioninc last edited by

                          Having canonical tags on pages that don't have any duplicate content is pointless, as it may actually stop you for ranking on keywords specific to pages not relative to the tag.

                          Please, may you present me a document that assess what are you saying? because it is the first time I hear this thing.

                          #curious

                          fourthdimensioninc AlanMosley 2 Replies Last reply Reply Quote 1
                          • RyanKent
                            RyanKent last edited by

                            The disadvantage to keeping a canonical tag on a page which does not require it would be, as a rule, you want to present your web page with the least amount of code possible. Unnecessary code causes extra confusion and adds to the processing time of web pages.

                            I use the canonical tag on all pages, but not everyone agrees. If you would like further support, SEOmoz uses the tag on all pages as well. If you use any CMS, ecommerce software, forum software or any system which generates pages dynamically then I would highly recommend a canonical tag on every page. At times a system will generate pages which you might not be aware of, but a crawler will find.

                            Sometimes a page will offer a print version, the ability to sort on ascending/descending, and numerous other changes. You might think you only have one version of your page but have many versions which you do not realize exist. A proper canonical tag ensures the correct version of your URL is always offered for indexing, and you avoid duplicate content issues. With that said, if you have a basic html/css/php site and you are 100% confident in your programmer, then it is not necessary.

                            EDIT: In your case, it seems the canonical tags are performing a necessary function. From your home page I clicked on your featured item and I landed on the following URL:

                            http://www.nathosp.com/product/r1212_c

                            You have the identical page offered under another URL: http://www.nathosp.com/product/r1212_c/hotel_towels.

                            If you were to remove the canonical, you would have duplicate content issues on your site.

                            mhans 1 Reply Last reply Reply Quote 4
                            • fourthdimensioninc
                              fourthdimensioninc last edited by

                              rel=canonical just passes all link juice from one page to the next, it tells bots to use the page specified in the tag to assess link value and page authority. Having canonical tags on pages that don't have any duplicate content is pointless, as it may actually stop you for ranking on keywords specific to pages not relative to the tag. I would look at it closely or ask the last SEO why they did this before removing them. But by the sounds of it, you dont really need them.

                              gfiorelli1 AlanMosley 2 Replies Last reply Reply Quote -1
                              • 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

                              • Kingalan1

                                Best Practices for Title Tags for Product Listing Page

                                My industry is commercial real estate in New York City. Our site has 300 real estate listings. The format we have been using for Title Tags are below. This probably disastrous from an SEO perspective. Using number is a total waste space. A few questions:
                                -Should we set listing not no index if they are not content rich?
                                -If we do choose to index them, should we avoid titles listing Square Footage and dollar amounts?
                                -Since local SEO is critical, should the titles always list New York, NY or Manhattan, NY?
                                -I have red that titles should contain some form of branding. But our company name is Metro Manhattan Office Space. That would take up way too much space. Even "Metro Manhattan" is long. DO we need to use the title tag for branding or can we just focus on a brief description of page content incorporating one important phrase? Our site is: w w w . m e t r o - m a n h a t t a n . c o m <colgroup><col width="405"></colgroup>
                                | Turnkey Flatiron Tech Space | 2,850 SF $10,687/month | <colgroup><col width="405"></colgroup>
                                | Gallery, Office Rental | Midtown, W. 57 St | 4441SF $24055/month | <colgroup><col width="405"></colgroup>
                                | Open Plan Loft |Flatiron, Chelsea | 2414SF $12,874/month | <colgroup><col width="405"></colgroup>
                                | Tribeca Corner Loft | Varick Street | 2267SF $11,712/month | <colgroup><col width="405"></colgroup>
                                | 275 Madison, LAW, P7, 3,252SF, $65 - Manhattan, New York |

                                Intermediate & Advanced SEO | | Kingalan1
                                0
                              • ostesmorbrod

                                Landing pages for paid traffic and the use of noindex vs canonical

                                A client of mine has a lot of differentiated landing pages with only a few changes on each, but with the same intent and goal as the generic version. The generic version of the landing page  is included in navigation, sitemap and is indexed on Google. The purpose of the differentiated landing pages is to include the city and some minor changes in the text/imagery to best fit the Adwords text. Other than that, the intent and purpose of the pages are the same as the main / generic page. They are not to be indexed, nor am I trying to have hidden pages linking to the generic and indexed one (I'm not going the blackhat way). So – I want to avoid that the duplicate landing pages are being indexed (obviously), but I'm not sure if I should use noindex (nofollow as well?) or rel=canonical, since these landing pages are localized campaign versions of the generic page with more or less only paid traffic to them. I don't want to be accidentally penalized, but I still need the generic / main page to rank as high as possible... What would be your recommendation on this issue?

                                Intermediate & Advanced SEO | | ostesmorbrod
                                0
                              • Solid_Gold

                                Why is rel="canonical" pointing at a URL with parameters bad?

                                Context Our website has a large number of crawl issues stemming from duplicate page content (source: Moz). According to an SEO firm which recently audited our website, some amount of these crawl issues are due to URL parameter usage. They have recommended that we "make sure every page has a Rel Canonical tag that points to the non-parameter version of that URL…parameters should never appear in Canonical tags." Here's an example URL where we have parameters in our canonical tag... http://www.chasing-fireflies.com/costumes-dress-up/womens-costumes/ rel="canonical" href="http://www.chasing-fireflies.com/costumes-dress-up/womens-costumes/?pageSize=0&pageSizeBottom=0" /> Our website runs on IBM WebSphere v 7. Questions Why it is important that the rel canonical tag points to a non-parameter URL? What is the extent of the negative impact from having rel canonicals pointing to URLs including parameters? Any advice for correcting this? Thanks for any help!

                                Intermediate & Advanced SEO | | Solid_Gold
                                1
                              • EcommerceSite

                                Should pages with rel="canonical" be put in a sitemap?

                                I am working on an ecommerce site and I am going to add different views to the category pages. The views will all have different urls so I would like to add the rel="canonical" tag to them. Should I still add these pages to the sitemap?

                                Intermediate & Advanced SEO | | EcommerceSite
                                0
                              • SmartStartMediacom

                                Javascript to fetch page title for every webpage, is it good?

                                We have a zend framework that is complex to program if you ask me, and since we have 20k+ pages that we need to get proper titles to and meta descriptions, i need to ask if we use Javascript to handle page titles (basically the previously programming team had NOT set page titles at all) and i need to get proper page titles from a h1 tag within the page. current course of action which we can easily implement is fetch page title from that h1 tag being used throughout all pages with the help of javascript, But this does makes it difficult for engines to actually read what's the page title? since its being fetched with javascript code that we have put in, though i had doubts, is anyone one of you have simiilar situation before? if yes i need some help! Update: I tried the JavaScript way and here is what it looks like http://islamicencyclopedia.org/public/index/hadith/id/1/book_id/106  i know the fact that google won't read JavaScript like the way we have done with the website, But i need help on "How we can work around this issue"  Knowing we don't have other options.

                                Intermediate & Advanced SEO | | SmartStartMediacom
                                0
                              • kchandler

                                What Happens If a Hreflang Sitemap Doesn't Include Every Language for Missing Translated Pages?

                                As we are building a hreflang sitemap for a client, we are correctly implementing the tag across 5 different languages including English. However, the News and Events section was never translated into any of the other four languages. There are also a few pages that were translated into some but not all of the 4 languages. Is it good practice to still list out the individual non-translated pages like on a regular sitemap without a hreflang tag? Should the hreflang sitemap include the hreflang tag with pages that are missing a few language translations (when one or two language translations may be missing)? We are uncertain if this inconsistency would create a problem and we would like some feedback before pushing the hreflang sitemap live.

                                Intermediate & Advanced SEO | | kchandler
                                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
                              • SDLOnlineChannel

                                Is it ok to use both 301 redirect and rel="canonical' at the same time?

                                Hi everyone, I'm sorry if this has been asked before. I just wasn't able to find a response in previous questions. To fix the problems in our website regarding duplication I have the possibility to set up 301's and, at the same time, modify our CMS so that it automatically sets a rel="canonical" tag for every page that is generated. Would it be a problem to have both methods set up? Is it a problem to have a on a page that is redirecting to another one? Is it advisable to have a rel="canonical" tag on every single page? Thanks for reading!

                                Intermediate & Advanced SEO | | SDLOnlineChannel
                                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.