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. Digital Marketing
    3. Web Design
    4. Does it do harm if you add a rel="canonical" tag on a page that doesn't need it?

    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.

    Does it do harm if you add a rel="canonical" tag on a page that doesn't need it?

    Web Design
    3
    5
    968
    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.
    • jaychow
      jaychow last edited by

      If a page is clearly unique and there is obviously no canonical tag needed, does it hurt anything if one has been added?

      1 Reply Last reply Reply Quote 0
      • MattAntonino
        MattAntonino @jaychow last edited by

        In my opinion, you want the juice for each article to stay with each article.  I wouldn't redirect all your article juice back to the main /blog page.  For me, each unique page (and article) gets its own canonical link and one line = one set of information.  Article about oranges, article about apples, both canonical links.  You should only get juice from same or similar pages, such as

        yoursite.com/

        yoursite.com/index.php

        www.yoursite.com/index.php

        www.yoursite.com/

        But not

        yoursite.com/oranges/

        1 Reply Last reply Reply Quote 0
        • jaychow
          jaychow @MattAntonino last edited by

          hey matt, thanks for the response.  let me ask you this.  i have a blog page with a bunch of snippets, that when clicked, lead to the full articles, (each have their own custom page/url).  if i want all the juice to go to the main blog page i don't want to have canonical tags on each individual post page, right?

          MattAntonino 1 Reply Last reply Reply Quote 0
          • TakeshiYoung
            TakeshiYoung @MattAntonino last edited by

            Agreed. You page can sometimes end up with query parameters as well when people link to your site, and having the canonical in place will help you avoid having duplicate content.

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

              It shouldn't hurt you if it doesn't need it but assuming you have www and non-www, wouldn't that part of the canonical always help anyways?  By default, you would have

              http://www.yoursite.com/notagneeded

              http://yoursite.com/notagneeded

              and if you're on most common CMSs,

              http://www.yoursite.com/notagneeded/index.php or index.html or index.asp

              It would actually be pretty rare to have a page with absolutely no use for rel=canonical but I don't see why it would hurt at all.

              TakeshiYoung jaychow 2 Replies Last reply Reply Quote 3
              • 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

              • gatorpool

                Do we need both an .XML Sitemap and a .aspx sitemap?

                Hi Mozers, We recently switched servers and it came to my attention that we have two sitemaps a XML version of the sitemap and a .aspx version of the sitemap. This came to light as the .aspx version of the sitemap is causing the site to come to a screeching halt as it has some complex code and lists over 80,000 products. My question is do we need both versions of the sitemap? My understanding is that the XML version is for Search Engine bots and the .aspx version is for customers. I can't imagine that anyone is using our .aspx version as it is basically a page with 80,000 links and it's buried away on the site, so we were hoping to kill off the .aspx version of the sitemap and keep the .xml version for Search Engine Bots. I wanted to check here first to make sure we did not any negative search engine implications. Any help would be most appreciated. Thanks so much! Patrick

                Web Design | | gatorpool
                0
              • CFSSEO

                Spaces at beginning of title tag - negatively affect the optimization of the page?

                For some reason, our title tags have a long space after the beginning title tag and before the text appears. The beginning title tag is on one line, then a break, a tab and then the content of the title tag.  I'm pretty sure this is not good and is affecting optimization of the page.  Am I correct or is this not an issue and does not need to be fixed? Example: | <title></span></p> <p> </p> </td> </tr> <tr> <td class="line-number"> </td> <td class="line-content">                       First keyword</td> </tr> </tbody> </table></title> |

                Web Design | | CFSSEO
                0
              • Ron10

                Should i not use hyphens in web page titles? Google Penalty for hyphens?

                all the page titles  in my site have hyphens between the words like this: http://texas.com/texas-plumbers.html I have seen tests where hyphenated domain names ranked lower than non hyphenated domain names.  Does this mean my pages are being penalized for hyphens or is this only in the domain that it is penalized? If I create new pages should I not use hyphens in the page titles when there are two or more words in the title? If I changed all my page titles to eliminate the hyphens, I would lose all my rankings correct?  My site is 12 years old and if I changed all these titles I'm guessing that each page would be thrown in the google sandbox for several months, is this true? Thanks mozzers!

                Web Design | | Ron10
                0
              • madegood

                Script tags and seo

                Hi, I have a page on my site with a google map embed, and a path drawn on the map. The path is made from a long string of coordinates. For ease I have the co-ordinates placed in a script tag at the foot of the page, amongst my javascript My question is, will this script tag hurt the seo for the page? I've read that inline js and 'data islands' can be bad, so I've been careful to keep it out of the main body of the page. Thanks, any help appreciated!

                Web Design | | madegood
                0
              • DROIDSTERS

                Yes or No for Ampersand "&" in SEO URLs

                Hi Mozzers I would like to know how crawlers see the ampersand (& or &) in your URLs and if Google frown upon this or not? As far as I know they purely recognise this as "and" is this correct and is there any best practice for implementing this, as I know a lot of people complained before about & in links and that it is better to use it as &, but this is not on links, this is on URLs. Reason for this is that we looking to move onto an ASP.Net MVC framework (any suggestions for a different framework are welcome, we still just planning out future development) and in order to make use of the filter options we have on our site we need a parameter to indicate the difference on a routing level (routing sends to controller, controller sends to model, model sends to controller and controller sends to view < this is pattern of a request that comes in on the framework we will be using). I already have -'s and /'s in the URLs (which is for my SEO structuring) so these syntax can't be used for identifying filters the user clicks or uses to define their search as it will create a complete mess in the system. Now we looking at & to say; OK, when a user lands on /accommodation and they selects De Kelders (which is a destination in our area) the page will be /accommodation/de-kelders on this page they can define their search further to say they are looking for 5 star accommodation and it should be close to the beach, this is where the routing needs some guidance and we looking to have it as follow: /accommodation/de-kelders/5-star&close-to-the-beach. Now, does the "&" get identified by search engines on a URL level as "and" and does this cause any issues with crawling or indexation or would it be best to look at another solution? Thanks, Chris Captivate

                Web Design | | DROIDSTERS
                0
              • RetroOnline

                Duplicate H1 tag IF it holds SAME text?

                Hello people, I know that majority of SEO gurus (?) claim that H1 tag should only be used once per page. In the landing page design I'm working with, we actually need to repeat our core message stated in H1 & H2 - at the bottom of the page. Now the question is: Can that in any way cause any ranking penalty from big G? In my eyes that is not attempt to over optimize page as it contains SAME info as the H1 & H2 at the top of the page. Confusing, so I'm hope that some SEO gurus here will share some light on this. Thanks in advance!

                Web Design | | RetroOnline
                0
              • HMK-NL

                Best layout pages for SEO

                Dear all, what would be the ideal layout of a webpage for SEO? How would a homepage and landingspage look like? Thanks in advance! Best regards, Ben

                Web Design | | HMK-NL
                0
              • iAnalyst.com

                Custom URL's with Bigcommerce Issue (Is it worth it?)

                We're building out a store in Bigcommerce, who for all intensive purposes is perfect for SEO besides the fact that you can not change the URL's to be custom. My question is, does this kill the SEO value of bigcommerce, despite everything else being great? So for example the URL's for a category page would be something like this www.mysite.com/categories/keyword and the product URL's are pulled in by product name, so product URL's could be something like www.mysite.com/products/Product-Description-Long-223.html (notice the words will be capitalized and their is no way to remove the trailing .html) I could go with Interspire (the liscenced version of Bigcommerce) or Magento so I can custom edit this stuff. But then its a lot more work for my employee's on the buildout.

                Web Design | | iAnalyst.com
                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.