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.
Adding a Canonical Tag to each page referencing itself?
-
Hey Mozers!
I've noticed that on www.Zappos.com they have a Canonical tag on each page referencing it self. I have heard that this is a popular method but I dont see the point in canon tagging a page to its self.
Any thoughts?
-
Forgive me if this is a silly question, but does this mean you would need to go and identify all the urls with extra parameters, and add canonical tag pointing to the primary url?
Coz if so, that would be an extremly labourious task, no? Some of my duplicate issues, have 50+ urls that are being counted as 'duplicates'.
There must be a better way, hence, I fear this must be a silly question...
-
The self-referencing canonical tags should only be for your actual preferred URLs. So if www.testwebsite.com/duplicate is a duplicate because of parameters (for example), then no, it should not have the self-referencing canonical tag - it should have a canonical tag pointing to the preferred URL should (www.testwebsite.com/ in this case, which would have the self-ref tag).
Zappos example:
- http://www.zappos.com/beyond-yoga-women-shirts-tops~1 (self-ref canonical tag)
- http://www.zappos.com/beyond-yoga-women-shirts-tops~1#!/beyond-yoga-women-shirts-tops/CKvXARDL1wFSAv0eegLgBIIBAukjwAEB4gIFGAECCg8.zso (canonical tag points to unfiltered page)
If www.testwebsite.com/duplicate is a static page that you want indexed, but that has the same content as www.testwebsite.com/, then the solution is updating/adding content to be unique (then applying the self-ref canonical tags to both URLs which are now unique).
Make sense?
Founder & CEO at Schleicher Marketing
Technical SEO, eCommerce, CRO/UX Design, Migrations, Shopify+, Digital Strategy
Entrepreneur In Residence at StartupSD.org -
I've not come across any reason ever that would give cause to be concerned about losing Page Authority by having a page canonical to itself.
-
Well it was more so a concern for me applying this method to my own site more so than a concern for Zappos getting flagged lol
Im curious to know would it do anything at all to the page Authority if you have it Canon tagged to itself?
-
No need to be concerned. Aside from all the really well documented best practices on canonicals, in your original question you've spotted at least one big site that does this. They pay the SEO big bucks and rank well.
-
I would assume that by having each page canon tag itself your basically telling google "Hey I am aware that this is a duplicate but treat it as its own page and not as a version of another". My concern is by doing so your losing potential Page Authority
example:
www.testwebsite.com ---Canonionical--- www.testwebsite.com
www.testwebsite.com/duplicate ---Canonical --- www.testwebsite.com/duplicate
-
Yes this is a good idea as it's a catch all for URLs that might include tracking URL parameters, or other parameters that don't affect the page content. When there are no tracking parameters, it's going to be more development and testing work to hide the canonical, when having it there doesn't cause any issues. It's also quite a brutal but effective catch all if your page was accidentally accessible via other URLs - e.g. non-www or https.
George
-
Moz.com does this as well and you may also see an "Insight" in your Moz Analytics account recommending site-wide implementation 'to prevent any unforeseen duplicate content issues.' I have started following this practice since it really can't hurt & sometimes dup content pops up in the weirdest, most 'unforeseen' ways.
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.
Related Questions
-
Is it best practice to have a canonical tags on all pages
The website I'm working on has no canonical tags. There is duplicate content so rel=canonicals need adding to certain pages but is it best practice to have a tag on every page ?
Intermediate & Advanced SEO | | ColesNathan0 -
Can noindexed pages accrue page authority?
My company's site has a large set of pages (tens of thousands) that have very thin or no content. They typically target a single low-competition keyword (and typically rank very well), but the pages have a very high bounce rate and are definitely hurting our domain's overall rankings via Panda (quality ranking). I'm planning on recommending we noindexed these pages temporarily, and reindex each page as resources are able to fill in content. My question is whether an individual page will be able to accrue any page authority for that target term while noindexed. We DO want to rank for all those terms, just not until we have the content to back it up. However, we're in a pretty competitive space up against domains that have been around a lot longer and have higher domain authorities. Like I said, these pages rank well right now, even with thin content. The worry is if we noindex them while we slowly build out content, will our competitors get the edge on those terms (with their subpar but continually available content)? Do you think Google will give us any credit for having had the page all along, just not always indexed?
Intermediate & Advanced SEO | | THandorf0 -
Putting "noindex" on a page that's in an iframe... what will that mean for the parent page?
If I've got a page that is being called in an iframe, on my homepage, and I don't want that called page to be indexed.... so I put a noindex tag on the called page (but not on the homepage) what might that mean for the homepage? Nothing? Will Google, Bing, Yahoo, or anyone else, potentially see that as a noindex tag on my homepage?
Intermediate & Advanced SEO | | Philip-DiPatrizio0 -
How do I get rel='canonical' to eliminate the trailing slash on my home page??
I have been searching high and low. Please help if you can, and thank you if you spend the time reading this. I think this issue may be affecting most pages. SUMMARY: I want to eliminate the trailing slash that is appended to my website. SPECIFIC ISSUE: I want www.threewaystoharems.com to showing up to users and search engines without the trailing slash but try as I might it shows up like www.threewaystoharems.com/ which is the canonical link. WHY? and I'm concerned my back-links to the link without the trailing slash will not be recognized but most people are going to backlink me without a trailing slash. I don't want to loose linkjuice from the people and the search engines not being in consensus about what my page address is. THINGS I"VE TRIED: (1) I've gone in my wordpress settings under permalinks and tried to specify no trailing slash. I can do this here but not for the home page. (2) I've tried using the SEO by yoast to set the canonical page. This would work if I had a static front page, but my front page is of blog posts and so there is no advanced page settings to set the canonical tag. (3) I'd like to just find the source code of the home page, but because it is CSS, I don't know where to find the reference. I have gone into the css files of my wordpress theme looking in header and index and everywhere else looking for a specification of what the canonical page is. I am not able to find it. I'm thinking it is actually specified in the .htaccess file. (4) Went into cpanel file manager looking for files that contain Canonical. I only found a file called canonical.php . the only thing that seemed like it was worth changing was changing line 139 from $redirect_url = home_url('/'); to $redirect_url = home_url(''); nothing happened. I'm thinking it is actually specified in the .htaccess file. (5) I have gone through the .htaccess file and put thes 4 lines at the top (didn't redirect or create the proper canonical link) and then at the bottom of the file (also didn't redirect or create the proper canonical link) : RewriteEngine on
Intermediate & Advanced SEO | | Dillman
RewriteCond %{HTTP_HOST} ^([a-z.]+)?threewaystoharems.com$ [NC]
RewriteCond %{HTTP_HOST} !^www. [NC]
RewriteRule .? http://www.%1threewaystoharems.com%{REQUEST_URI} [R=301,L] Please help friends.0 -
Best way to implement canonical tags on an ecommerce site with many filter options?
What would be the best way to add canonical tags to an ecommerce site with many filter options, for example, http://teacherexpress.scholastic.com? Should I include a canonical tag for all filter options under a category even though the pages don't have the same content? Thanks for reading!
Intermediate & Advanced SEO | | DA20130 -
Does rel=canonical fix duplicate page titles?
I implemented rel=canonical on our pages which helped a lot, but my latest Moz crawl is still showing lots of duplicate page titles (2,000+). There are other ways to get to this page (depending on what feature you clicked, it will have a different URL) but will have the same page title. Does having rel=canonical in place fix the duplicate page title problem, or do I need to change something else? I was under the impression that the canonical tag would address this by telling the crawler which URL was the URL and the crawler would only use that one for the page title.
Intermediate & Advanced SEO | | askotzko0 -
How does a canonical work and is it necessary to also have a no index, follow tag in place?
Across our site, we have canonical tags in place for URLs that contain duplicate content and for URLs without a trailing slash since we are using URLs WITH a trailing slash for all URLs across our site. We also recently added a no index, follow tag to all non-canonical URLs since we noticed a high number of duplicate content URLs in Google Webmaster Tools. The first part of my question is: How does a canonical work? Does the robot read the canonical and immediately go to the canonical URL or does it continue to read past the canonical tag and get to the no index, follow tag if there is one present? The second part of my question is: Is it necessary to have both a canonical tag and no index, follow tag in place? Or should the canonical tag be sufficient to avoid duplicate content? And lastly, if both a canonical tag and no index, follow tag are in place, should they be in a specific order? Canonical tag first then no index, follow tag second or no index, follow tag first then canonical tag second? I would appreciate any insight you can give. Thank you!
Intermediate & Advanced SEO | | kbbseo0 -
Canonical Tag and Affiliate Links
Hi! I am not very familiar with the canonical tag. The thing is that we are getting traffic and links from affiliates. The affiliates links add something like this to the code of our URL: www.mydomain.com/category/product-page?afl=XXXXXX At this moment we have almost 2,000 pages indexed with that code at the end of the URL. So they are all duplicated. My other concern is that I don't know if those affilate links are giving us some link juice or not. I mean, if an original product page has 30 links and the affiliates copies have 15 more... are all those links being counted together by Google? Or are we losing all the juice from the affiliates? Can I fix all this with the canonical tag? Thanks!
Intermediate & Advanced SEO | | jorgediaz0