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
-
Rel canonical tag from shopify page to wordpress site page
We have pages on our shopify site example - https://shop.example.com/collections/cast-aluminum-plaques/products/cast-aluminum-address-plaque That we want to put a rel canonical tag on to direct to our wordpress site page - https://www.example.com/aluminum-plaques/ We have links form the wordpress page to the shop page, and over time ahve found that google has ranked the shop pages over the wp pages, which we do not want. So we want to put rel canonical tags on the shop pages to say the wp page is the authority. I hope that makes sense, and I would appreciate your feeback and best solution. Thanks! Is that possible?
Intermediate & Advanced SEO | | shabbirmoosa0 -
Importance (or lack of) Meta keywords tags and Tags in Drupal
I'm wondering should I put any effort in making Meta Keywords tags for my pages or normal Tags (they're separate in Drupal), since apparently first are not considered by most of search engines, while not sure about normal tags. Obviously SERPS has to determine partial valu of the page by content, thus consider keywords / tags to some extend. What's your opinion on that. Thank you.
Intermediate & Advanced SEO | | Optimal_Strategies1 -
Move to new domain using Canonical Tag
At the moment, I am moving from olddomain.com (niche site) to the newdomain.com (multi-niche site). Due to some reasons, I do not want to use 301 right now and planning to use the canonical pointing to the new domain instead. Would Google rank the new site instead of the old site? From what I have learnt, the canonical tag lets Google know that which is the main source of the contents. Thank you very much!
Intermediate & Advanced SEO | | india-morocco0 -
Google webmaster reports non-existent links between syndicated sites
We have run into an issue with linking that we are completely puzzled by. We syndicate our content to various clients, taking care to ensure that we have followed all the best practices that Google recommends for syndicating content. But recently, we noticed Google Webmaster report links from ClientA to ClientB, and we cannot figure out why it thinks that way. We have never created, and we have never found the links that Google Webmaster claims are there. It is important for us to keep our clients isolated. Has anyone seen such behavior? Any ideas/pointers/hunches would be very much appreciated. Happy to provide more information. We even asked on the Google Webmaster Forum (https://productforums.google.com/forum/#!topic/webmasters/QkGF7-HZHTY;context-place=forum/webmasters), but thought this might be a better place to get expert advice. Thanks!
Intermediate & Advanced SEO | | prakash.sikchi0 -
Can I tell Google to Ignore Parts of a Page?
Hi all, I was wondering if there was some sort of html trick that I could use to selectively tell a search engine to ignore texts on certain parts of a page. Thanks!
Intermediate & Advanced SEO | | Charles_Murdock
Charles0 -
Can I add Title/Description tags to site map
I have started working on a website that it written in JAVA. It has 26 URL's But because of the way it is written it is all shown on the home page code and does not have the ability to add unique title and description tags. Is there a work around for SEO on websites like this aside from adding content? I was wondering if there is a way to submit a sitemat with title and description tags. Any advice? Chris.K
Intermediate & Advanced SEO | | CKerr0 -
Pagination, Canonical Tag & Best Practices
I have an eCommerce site that dynamically creates category pages, which produce canonical tags in the header. For multiple page categories, it adds the page number to the URL. For example, this category has 3 pages.... Because most categories have too many products, I can't follow Googles suggestion of creating a "view all" page. Furthermore since all these pages use the same template, I'm unable to insert a NOINDEX tag in all the pages after the first page. Also, in this scenario, I'm unable to insert the discreet code for Next/Previous, which is also suggested by Google. My only option for maintaining these dynamically generated category pages would be to hardcode the first conical tag in the template, which would then be produced on all subsequent paginated pages. Consequently, every paginated page in this category would have the same canonical tag pointing to the first page. Would this incur the wrath of Google and would I'd be better off leaving the pagination they way it is?
Intermediate & Advanced SEO | | alrockn0 -
Why has my site dropped off the face of Google???
Hi All, My site was ranking well for a long time and suddenly can't be seen at all any more. I have been trying to figure this out for some time and can't get to the bottom of it. Funny thing is also even when searching for my site with a keyword "snowboard gulmarg" my URL www.klinehinmalaya.com does not appear and somewhere way back in the listing my another page www.klinehimalaya.com/packages.php comes up. Any help would be good right now. Thanks in advance, Catherine.
Intermediate & Advanced SEO | | caherinechan0