Google Ignoring Canonical Tag for Hundreds of Sites
-
Bazaar Voice provides a pretty easy-to-use product review solution for websites (especially sites on Magento): https://www.magentocommerce.com/magento-connect/bazaarvoice-conversations-1.html
If your product has over a certain number of reviews/questions, the plugin cuts off the number of reviews/questions that appear on the page.
To see the reviews/questions that are cut off, you have to click the plugin's next or back function. The next/back buttons' URLs have a parameter of "bvstate....."
I have noticed Google is indexing this "bvstate..." URL for hundreds of sites, even with the proper rel canonical tag in place.
Here is an example with Microsoft:
My website is seeing hundreds of these "bvstate" urls being indexed even though we have a proper rel canonical tag in place. It seems that Google is ignoring the canonical tag. In Webmaster Console, the main source of my duplicate titles/metas in the HTML improvements section is the "bvstate" URLs.
I don't necessarily want to block "bvstate" in the robots.txt as it will prohibit Google from seeing the reviews that were cutoff. Same response for prohibiting Google from crawling "bvstate" in Paramters section of Webmaster Console.
Should I just keep my fingers crossed that Google honors the rel canonical tag?
Home Depot is another site that has this same issue:
-
I have had something similar, this is response I received:
You don’t have canonical tags on the URL and that’s expected.
On pages where BVSEO is implemented, canonical tags must be updated or removed when the product contains more than one page (more than eight) of reviews. BVSEO paginates the product page so all reviews are in the search engines’ index. Canonical tags that point away from a pagination URL will cause search engines to ignore the paginated content.
When any of the BVSEO pagination parameters are present (bvstate, bvrrp, bvqap, bvsyp, bvpage), do one of the following:
•Remove the canonical tag. This is the most common, recommended solution.
•Append the "name=value" pair to the canonical URL.
-
I think I found out what is going on.
I have found that the source code does contain the proper rel canonical tag.
However, the "bazaar voice" plugin generates a code snippet that appears in the page's body where it features a [base_url]. The [base_url] should match up with the canonical tag. For some reason, it isn't. The [base_url] that is generated contains the "bvstate" parameter.
Tools like the Mozbar, and I believe even Googlebot, are extracting out overriding the rel canonical tag with the [base_url] that appears in the code.
Complex!
-
Yeah, it's very strange... if you view-source on the BVSTATE url that is cached, the proper canonical tag is in there. Don't know why toolbar apps like Mozbar show otherwise. I think you're right, must be a deeper issue.
-
I just ran this query for bvstate URLs indexed for the H&R Block site. Mozbar shows canonical tags with bvstate in them, and Screaming Frog finds no canonical tags at all. There is a deeper issue that is not simply Google ignoring them.
-
Hey Logan -
The Microsoft canonical is not being obeyed. The canonical tag points to the one representative URL for the product whereas the "bvstate" URL is shown as being cached.
If you do a search in Google for inurl:"bvstate" , you will see hundreds of sites like H&R Block, Kohls, etc.
-
Do you have different examples? The Home Depot link doesn't work when trying to view the actual page on the site. With the Microsoft link, the canonical is working, as the version with the parameter is not indexed in Google, but the canonical version is indexed, which is what I would expect for a canonical that is being obeyed.
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
-
SEO on Jobs sites: how to deal with expired listings with "Google for Jobs" around
Dear community, When dealing with expired job offers on jobs sites from a SEO perspective, most practitioners recommend to implement 301 redirects to category pages in order to keep the positive ranking signals of incoming links. Is it necessary to rethink this recommendation with "Google for Jobs" is around? Google's recommendations on how to handle expired job postings does not include 301 redirects. "To remove a job posting that is no longer available: Remove the job posting from your sitemap. Do one of the following: Note: Do NOT just add a message to the page indicating that the job has expired without also doing one of the following actions to remove the job posting from your sitemap. Remove the JobPosting markup from the page. Remove the page entirely (so that requesting it returns a 404 status code). Add a noindex meta tag to the page." Will implementing 301 redirects the chances to appear in "Google for Jobs"? What do you think?
Intermediate & Advanced SEO | | grnjbs07175 -
I currently have a canonical tag pointing to a different url for single page categories on eCommerce site. Is this wrong ?
Hi Mozzers, I have a query regarding canonical tags on my eCommerce site.. Basically on my category pages whereby I have more than 1 page, I currently use next/prev rel and also have a canonical tag pointing to the View all version of that page. This is believe is correct.(see example - http://goo.gl/2gz6LV However, from looking at the view source on my other pages, I have noticed I have canonical tags on all my category pages which are only a single page and these canonicaltag are pointing to a different url. I enclose an example . Please advise Category page - http://goo.gl/Pk4zYl This is where the canonical tag points to - http://goo.gl/EwKv26 Another example Category Page - http://goo.gl/4gWTdD This is where the canonical tag for that page points to http://goo.gl/qm4HV7 Should I either make sure that categories that are only 1 page , don't have a canonical tag at all ? or do I have a canonical tag on say every page on my website for safety pointing to the main url for that page. The later, I imagine would be a belt and braces approach but I don't want to screw up anything if it's not advised? Please help/ Kind regards Pete
Intermediate & Advanced SEO | | PeteC120 -
Does Bing support cross-domain canonical tag?
Hi folks, We are planning to implement a cross-domain canonical tag for a client and I'm looking for some information on bing supporting cross-domain canonical tag. Does anyone knows if there was a public announcement made by Bing or any representative about the support of this tag? Btw, the best info I've found is a Q&A here on Moz about it http://moz.com/community/q/does-bing-support-cross-domain-canonical-tags but I'm looking for a Bing information on the topic.
Intermediate & Advanced SEO | | fabioricotta-840380 -
Google's form for "Small sites that should rank better" | Any experiences or results?
Back in August of 2013 Google created a form that allowed people to submit small websites that "should be ranking better in Google". There is more info about it in this article http://www.seroundtable.com/google-small-site-survey-17295.html Has anybody used it? Any experiences or results you can share? *private message if you do not want to share publicly...
Intermediate & Advanced SEO | | GregB1230 -
Homepage not showing up in Google even when searching exact title tag
why does my site not show up in Google even when you search exact homepage title tag or business name (Brand-It Web Design)? You can even search the exact title tag for my site and it does not show up. If you search site:branditwebdesign.com you will see that it is there. But just the homepage doesn't show up in search for anything else. We have probably tried everything in the world to get this working. Any suggestions?
Intermediate & Advanced SEO | | Brand_It_Web_Design0 -
Robots.txt Blocked Most Site URLs Because of Canonical
Had a bit of a "Gotcha" in Magento. We had Yoast Canonical Links extension which worked well , but then we installed Mageworx SEO Suite.. which broke Canonical Links. Unfortunately it started putting www.mysite.com/catalog/product/view/id/516/ as the Canonical Link - and all URLs with /catalog/productview/* is blocked in Robots.txt So unfortunately We told Google that the correct page is also a blocked page. they haven't been removed as far as I can see but traffic has certainly dropped. We have also , at the same time had some Site changes grouping some pages & having 301 redirects. Resubmitted site map & did a fetch as google. Any other ideas? And Idea how long it will take to become unblocked?
Intermediate & Advanced SEO | | s_EOgi_Bear0 -
Is a 301 Direct with a canonical tag Possible ?
Hi All, Quick question , Are we correct in thinking that for any given URL it's not possible to do a 301 redirect AND a canonical tag? thanks Sarah
Intermediate & Advanced SEO | | SarahCollins0 -
If google ignores links from "spammy" link directories ...
Then why does SEO moz have this list: http://www.seomoz.org/dp/seo-directory ?? Included in that list are some pretty spammy looking sites such as: <colgroup><col width="345"></colgroup>
Intermediate & Advanced SEO | | adriandg
| http://www.site-sift.com/ |
| http://www.2yi.net/ |
| http://www.sevenseek.com/ |
| http://greenstalk.com/ |
| http://anthonyparsons.com/ |
| http://www.rakcha.com/ |
| http://www.goguides.org/ |
| http://gosearchbusiness.com/ |
| http://funender.com/free_link_directory/ |
| http://www.joeant.com/ |
| http://www.browse8.com/ |
| http://linkopedia.com/ |
| http://kwika.org/ |
| http://tygo.com/ |
| http://netzoning.com/ |
| http://goongee.com/ |
| http://bigall.com/ |
| http://www.incrawler.com/ |
| http://rubberstamped.org/ |
| http://lookforth.com/ |
| http://worldsiteindex.com/ |
| http://linksgiving.com/ |
| http://azoos.com/ |
| http://www.uncoverthenet.com/ |
| http://ewilla.com/ |0