Appropriate Use of Canonical Tag
-
Hello,
I am creating study guides for books with tabbed elements for each study guide.
For example, for Othello, I'd have 3 tabs like so:
1. Overview page = xyz.com/othello
2. Context = xyz.com/othello/context
3. Characters = xyz.com/othello/characters
I noticed that YouTube channels have tabbed elements and use the canonical. For example, all of the tabbed sections on https://www.youtube.com/user/Nerdist/channels have this canonical http://www.youtube.com/user/Nerdist">
In my case, would it be a correct use of the canonical tag to include rel="canonical" href = http://xyz.com/othello on each of the tabbed pages?
Also, where exactly in the header should the canonical be placed? Before or after open graph / twitter cards?
-
Hi Jason,
I would definitely not canonicalise between the three+ URLs about one text unless those URLs contain identical information. Since they won't be identical (one will be plot, one characters, etc. as you say earlier in the thread), I would not canonicalise. You will result in content such as that on characters not being indexed or crawled. The site is therefore probably less likely to rank for queries like [othello characters] if the characters page has a canonical tag on it, pointing to the plot summary page.
Without having seen the site or mock-ups, I believe you would be safe to use separate URLs for each area of study surrounding one topic.
However, you could indeed put all this content on one page and use tabs to switch between the content, given that it is too long to fit nicely on one page. The tabs should be operated by CSS, and all the text (plot summary, characters, context) would be in the source code upon page load. People would click between tabs to read it. This is not considered cloaking or hiding content, although I would avoid doing this if the content for each section is particularly lengthy. I doubt it would get you in trouble, but if you are creating substantial content for each area of study, this would work well on separate URLs _without _canonicalising to one particular page, as per your original structure.
Cheers,
Jane
-
I'd recommend using pagination over canonicals.
Refer to this post to learn how to implement them.
http://www.ayima.com/seo-knowledge/conquering-pagination-guide.html
-
Again, if the content is all on one page, partitioned into separate tabs, then there's no need for canonicals or anything else for that matter. You can configure your tabs so the overview is the default tab, the one that displays on entry to the page.
If the page becomes too lengthy or takes to long to load, then another option is to split it onto separate URLs and use page (rel=next and rel=prev) tags to relate them.
-
There is way too much content to fit onto one page - that is why I am using the tabular format. The question is should the content in all tabs be on the same URL or different URLs? And if different URLs should I use the canonical?
-
In my opinion, the content would ideally be located on the same page.
You have to balance that with the length of the content and the ability of the page to load quickly. Assuming you can get it all on one page, then you don't need canonical tags.
-
So I am laying the content out in tabular format. This actually leads to another question - should each tab be a separate URL or all on the same URL? Perhaps by keeping everything on the same URL this would also solve my canonical issue?
-
So the issue is that the content within each tab is definitely not duplicate but related. Ie one tab might be the plot summary while another tab consists of character descriptions. Ideally, I think the best user experience would be for all users to start on the overview though. So given that the content in each tab is NOT duplicate but it would be a better user experience to start at the overview, should I use canonical or is it safer to just leave it out?
-
I think I'm not understanding something. Why do you want to partition the content onto three pages? Why not just lay out the content so it displays in a tabular format? That way you don't have to worry about canonicalizing or paginating the content at all.
if you are concerned about page load tomes, then if would consider pagination instead. This post is an excellent resource for how (and when) to do that.
http://www.ayima.com/seo-knowledge/conquering-pagination-guide.html
-
The example you stated would prevent context and character tabs from being indexed in search engines. If these are unique content, you should reconsider because canonical was originally created for multiple urls with identical information. Place the tag anywhere in the header.
-
If those pages are essentially duplicate content, then you should use a canonical. If you Google to index each of those pages separately, and return each one in search results, then you should not use one. Do you want people who search for text that matches your context and character tabs closely to be linked directly into those tabs, or should they always start at the overview page? If they should always start at the overview, you can try the canonical tags. Be aware that if the page contents aren't very similar, Google may ignore these.
Anywhere in the is fine, it doesn't matter where you place it.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
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
-
Canonical and Alternate Advice
At the moment for most of our sites, we have both a desktop and mobile version of our sites. They both show the same content and use the same URL structure as each other. The server determines whether if you're visiting from either device and displays the relevant version of the site. We are in a predicament of how to properly use the canonical and alternate rel tags. Currently we have a canonical on mobile and alternate on desktop, both of which have the same URL because both mobile and desktop use the same as explained in the first paragraph. Would the way of us doing it at the moment be correct?
Intermediate & Advanced SEO | | JH_OffLimits3 -
Pages canonicaled to another appearing before the canonical on google searches
Hello, When I do this google search, this page(amandine roses category) appears before the one it is canonical-ed to(this multi-product version of amandine roses). This happens often with this multi-product template, where they don't rank as well as their category version(that are canonical to the multi-product version). Can someone maybe point us in the right direction on what the issue may be? What can be improved?
Intermediate & Advanced SEO | | globalrose.com0 -
Using del canonical for subpage relating to homepage
Hi, I have a subpage that has a Moz-Page Optimization score for a keyword of 98%. Nevertheless that page is not seen on page one of google. Instead google shows the homepage of the same site which has only an optimization score of around 50%. Now Moz suggests to implement a del canonical tag. Should I implement one in the subpage relating to the homepage? I have never done this and am a little unsure. What if there are other keywords for which the homepage should be shown? Will the homepage still show up? Best wishes Marc
Intermediate & Advanced SEO | | RWW0 -
What is better? No canonical or two canonicals to different pages?
I have a blogger site that is adding parameters and causing duplicate content. For example: www.mysite.com/?spref=bl
Intermediate & Advanced SEO | | TMI.com
www.mysite.com/?commentPage=1 www.mysite.com/?m=1 www.mysite.com/?m=0 I decided to implement a canonical tag on these pages pointing to the correct version of the page. However, for the parameter ?m=0, the canonical keeps pointing to itself. Ex: www.mysite.com/?m=0 The canonical = www.mysite.com/?m=0 So now I have two canonicals for the same page. My question is if I should leave it, and let Google decide, or completely remove the canonicals from all pages?0 -
Block in robots.txt instead of using canonical?
When I use a canonical tag for pages that are variations of the same page, it basically means that I don't want Google to index this page. But at the same time, spiders will go ahead and crawl the page. Isn't this a waste of my crawl budget? Wouldn't it be better to just disallow the page in robots.txt and let Google focus on crawling the pages that I do want indexed? In other words, why should I ever use rel=canonical as opposed to simply disallowing in robots.txt?
Intermediate & Advanced SEO | | YairSpolter0 -
Rel Canonical Link on the Canonical Page
Is there a problem with placing a rel=canonical link on the canonical page - in addition to the duplicate pages? For example, would that create create an endless loop where the canonical page keeps referring to itself? Two examples that are troubling me are: My home site is www.1099pro.com which is exactly the same as www.1099pro.com/index.asp (all updates to the home page are made by updating the index.asp page). I want www.1099pro.com/index.asp to have the rel=canonical link to point to my standard homepage www.1099pro.com but any update that I make on the index page is automatically incorporated into www.1099pro.com as well. I don't have access to my hosting web server and any updates I make have to be done to the specific landing pages/templates. I am also creating a new website that could possible have pages with duplicate content in the future. I would like to already include the rel=canonical link on the standard canonical page even though there is not duplicate content yet. Any help really would be appreciated. I've read a ton of articles on the subject but none really define whether or not it is ok to have the rel=canonical link on both the canonical page and the duplicate pages. The closest explanation was in a MOZ article that it was ok but the answer was fuzzy. -Mike
Intermediate & Advanced SEO | | Stew2220 -
H1 Tags and HTML5
I have read that now you can have multiple h1 tags on a page without it negatively impacting SEO. Previously it was advised to only have 1 h1 tag on a page. Example: with the new semantic mark up you could have separate h1 tags for the header, article, aside and footer. Is this really the case?
Intermediate & Advanced SEO | | bronxpad0 -
What is the best canonical url to use for a product page?
I just helped a client redesign and launch a new website for their organic skin care company (www.hylunia.com). The site is built in Magento which by default creates MANY urls for each product. Which of these two do you think would be the best to use as the canonical version? http://www.hylunia.com/pure-hyaluronic-acid-solution
Intermediate & Advanced SEO | | danielmoss
or http://www.hylunia.com/products/face-care/facial-moisturizers/pure-hyaluronic-acid-solution ? I'm leaning on the latter, because it makes sense to me to have the breadcrumbs match the url string, and also it seems having more keywords in the url would help. However, it's obviously a very long url, and there might be some benefits to using the shorter version that I'm not aware of. Thanks in advance for sharing your thoughts. Best, Daniel0