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.
Canonical URLs and Sitemaps
-
We are using canonical link tags for product pages in a scenario where the URLs on the site contain category names, and the canonical URL points to a URL which does not contain the category names. So, the product page on the site is like www.example.com/clothes/skirts/skater-skirt-12345, and also like www.example.com/sale/clearance/skater-skirt-12345 in another category. And on both of these pages, the canonical link tag references a 3rd URL like www.example.com/skater-skirt-12345. This 3rd URL, used in the canonical link tag is a valid page, and displays the same content as the other two versions, but there are no actual links to this generic version anywhere on the site (nor external).
Questions:
1. Does the generic URL referenced in the canonical link also need to be included as on-page links somewhere in the crawled navigation of the site, or is it okay to be just a valid URL not linked anywhere except for the canonical tags?
2. In our sitemap, is it okay to reference the non-canonical URLs, or does the sitemap have to reference only the canonical URL? In our case, the sitemap points to yet a 3rd variation of the URL, like www.example.com/product.jsp?productID=12345. This page retrieves the same content as the others, and includes a canonical link tag back to www.example.com/skater-skirt-12345. Is this a valid approach, or should we revise the sitemap to point to either the category-specific links or the canonical links?
-
Thanks. And since we've now implemented the aforementioned changes, I can give some findings back.
What we did: We changed our sitemap to point to the same canonical URLs as are referenced in the tags on our product pages (only one entry in sitemap per product).
What we didn't do: We didn't change the product pages themselves. They still have a canonical URL link reference, pointing to a URL with no category paths, which does not naturally occur in the navigation of the site (on the site, product pages all have category paths in the URL).
Findings: After submitting the new sitemap, the stats in Google Webmasters Tools indicate that almost all (> 96%) of our product pages are indexed. We believe that the pages were already indexed (for the most part) and now the sitemap is useful for metrics. From the timing, it's unlikely that the sitemap itself caused our index stats to get significantly better in just 1 day. Possible, but unlikely. In either case, since our product page URLs still reference canonical links which don't exist in the site's navigation, the evidence suggests that the canonical link itself is enough, and an actual navigation path to the canonical version of the page is not needed. That's just empirical evidence, we have no inside info on Google's methods, but this is what we believe now after monitoring.
-
With the canonical tag in place, I'm guessing that extra link would basically be ignored. It's probably harmless, but I'm not sure it will do anything. You could create an HTML "sitemap" (or even an XML sitemap) with the canonical URLs. It's not my first choice, but it at least would give Google an extra push.
-
We're in process of updating our canonical tagging and our sitemap, based on the feedback here. I have a question for the group though. Unfortunately we can't follow Andy Smith's suggestion of creating a "By Brand" navigation section on the site, since this web site is all private label (they sell all products under their own brand name).
One possible solution is to create a user-accessible site map page, with an "all products" paginated section, where all these product page URLs would be the canonical version.
But another possible solution, easier to implement, would be to have a user accessible link on each product page to the canonical version of itself. That is, when the user is on www.example.com/clothes/skirts/skater-skirt-12345, there would be a link to www.example.com/skater-skirt-12345, which would also be the URL specified in the canonical tag.
This seems redundant, but our results so far have borne out that the canonical tag pointing to a URL which doesn't really exist anywhere in the navigation doesn't seem to be having the desired effect. So, the thought is that a combination of the canonical tag, plus a "real" link to that same URL referenced in the canonical tag would better inform the search engine robots. But our hesitation is whether it should work for this link to be on the product page itself (e.g. the non-canonical version).
Any thoughts or feedback on approach?
-
Thanks for the responses. I've been monitoring for the past couple of weeks with the current sitemap and canonical structure, and so far the data seems consistent with the replies to this thread. In GWT, the sitemap stats show less than 1% of the URLs submitted are indexed so far. We have an action plan now to update the canonical structure and the sitemap to point to URLs which will be naturally crawled on the site as well.
-
There's no "have to" in most of these situations, but it boils down to this - the more canonical your canonical URL actually is, the better chance you have of Google honoring it. In other words, if you set a canonical tag but then never use that in internal links or your XML sitemap, odds are pretty good that Google may ignore the tag in some cases. You're basically saying "Hey, this URL is canonical! No, this one is! No, this one!" - it's a mixed message, and they're going to try to interpret it algorithmically.
I definitely think pointing to yet another version in the XML sitemap is a problem. Ideally, it would be great to unify your URLs, but if that's not possible, getting the canonical version in the sitemap would be a big help (and introducing yet another variant isn't good, so you'd kill two birds with one stone). As Andy said, if you could create some kind of internal link to the canonical version, even if it's not the main link, that could also help. I only hesitate on that one, because you don't want to end up with a weird, artificial linking structure (just creating links to have links).
Please note, this isn't necessarily a disaster the way you have it. Google could honor the tags properly and generally rank your site correctly. In my experience, though, it's a recipe for long-term problems, and it's worth fixing.
-
The purpose of the canonical tag is to tell Google which page to index first. So, on that note, I usually use the canonical tag on the strongest page in terms of pagerank, as this shows which page is linked to the best.
I'm also guessing you're using a framwork/platform like Magento, this can make linking quite difficult. I often suggest creating Brand pages, and link to the product page, the "3rd URL", from there. Brand pages also great for SEO, as most people search for brands first. Great place to get some fat head keywords in.
Also, make sure you put in the http:// as well, I think it is good practice to put in the full URL.
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
-
This url is not allowed for a Sitemap at this location error using pro-sitemaps.com
Hey, guys, We are using the pro-sitemaps.com tool to automate our sitemaps on our properties, but some of them give this error "This url is not allowed for a Sitemap at this location" for all the urls. Strange thing is that not all of them are with the error and most have all the urls indexed already. Do you have any experience with the tool and what is your opinion? Thanks
Intermediate & Advanced SEO | | lgrozeva0 -
Replace dynamic paramenter URLs with static Landing Page URL - faceted navigation
Hi there, got a quick question regarding faceted navigation. If a specific filter (facet) seems to be quite popular for visitors. Does it make sense to replace a dynamic URL e.x http://www.domain.com/pants.html?a_type=239 by a static, more SEO friendly URL e.x http://www.domain.com/pants/levis-pants.html by creating a proper landing page for it. I know, that it is nearly impossible to replace all variations of this parameter URLs by static ones but does it generally make sense to do this for the most popular facets choose by visitors. Or does this cause any issues? Any help is much appreciated. Thanks a lot in advance
Intermediate & Advanced SEO | | ennovators0 -
Double hyphen in URL - bad?
Instead of a URL such as domain.com/double-dash/ programming wants to use domain.com/double--dash/ for some reason that makes things easier for them. Would a double dash in the URL have a negative effect on the page ranking?
Intermediate & Advanced SEO | | CFSSEO0 -
If I own a .com url and also have the same url with .net, .info, .org, will I want to point them to the .com IP address?
I have a domain, for example, mydomain.com and I purchased mydomain.net, mydomain.info, and mydomain.org. Should I point the host @ to the IP where the .com is hosted in wpengine? I am not doing anything with the .org, .info, .net domains. I simply purchased them to prevent competitors from buying the domains.
Intermediate & Advanced SEO | | djlittman0 -
Where to put a page ID in a URL?
Hello, My company is going to change URLs to example.com/category or example.com/product. When we will change the URLs to product or category pages somehow we have to check whether the requested page is from category table in DB or from products table (this gives much speed to page load time). So we have to choose how to make the different product and category pages.
Intermediate & Advanced SEO | | komeksimas
Programmers said that we need to insert id to URL. So the question is: Which is the better way to place an id to an URL? example.com/product-name?id=111 example.com/product-name/111 example.com/product_name-111 Or maybe we should use some other punctuation mark to separate id from product name? p.s. I have read Dynamic URLs vs. static URLs by Google and it still didn't answered which is the best for all of the pages. Somehow others solve this problem by typing only the names to the URL, but could anyone tell what that technology should be?0 -
Submitting URLs multiple times in different sitemaps
We have a very dynamic site, with a large number of pages. We use a sitemap index file, that points to several smaller sitemap files. The question is: Would there be any issue if we include the same URL in multiple sitemap files? Scenario: URL1 appears on sitemap1. 2 weeks later, the page at URL1 changes and we'd like to update it on a sitemap. Would it be acceptable to add URL1 as an entry in sitemap2? Would there be any issues with the same URL appearing multiple times? Thanks.
Intermediate & Advanced SEO | | msquare0 -
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 -
Url with hypen or.co?
Given a choice, for your #1 keyword, would you pick a .com with one or two hypens? (chicago-real-estate.com) or a .co with the full name as the url (chicagorealestate.co)? Is there an accepted best practice regarding hypenated urls and/or decent results regarding the effectiveness of the.co? Thank you in advance!
Intermediate & Advanced SEO | | joechicago0