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.
Rel=canonical and internal links
-
Hi Mozzers,
I was musing about rel=canonical this morning and it occurred to me that I didnt have a good answer to the following question:
- How does applying a rel=canonical on page A referencing page B as the canonical version affect the treatment of the links on page A?
I am thinking of whether those links would get counted twice, or in the case of ver-near-duplicates which may have an extra sentence which includes an extra link, whther that extra link would count towards the internal link graph or not.
I suspect that google would basically ignore all the content on page A and only look to page B taking into account only page Bs links.
Any thoughts?
Thanks!
-
Thanks a lot for your reply Stephan!
I would be super intertesting to read a little more around the subject. Do you have any studies or cases you might refer me to which describe the flow of link equity to "page C" from "Page A"?
Many thanks
-
It's an interesting question. I'll extend your example slightly, so that we have:
- Page A, with a canonical pointing to Page B
- Page A also has a regular link to Page C
- Page B does not link to Page C at all
At the crawling stage, Googlebot will parse all of the links on Page A. So in this case it discovers both B and C (if it doesn't know of their existence already). This is uncontroversial stuff—the use of the canonical tag doesn't affect crawling/discovery.
You might then assume that Google—if it decides to obey the canonical instruction, which of course it doesn't always do—will pass all of Page A's link equity to Page B (minus the small fraction), and then no longer count that link from A to C in the link graph. Almost like a redirect, but for bots only.
However, that doesn't seem to happen. The link from A to C is still included in the link graph. PageRank (or whatever's replaced it) may still flow through that link, even though Page A is not to be indexed.
So to answer your original question, the content of Page A will not be ignored, and neither will its links. The unclear bit is how much Google will value that link from A to C.
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 Chain
This is quite advanced so maybe Rand can give me an answer? I often have seen questions surrounding a 301 chain where only 85% of the link juice is passed on to the first target and 85% of that to the next one, up to three targets. But how about a canonical chain? What do I mean by this:? I have a client who sells lighting so I will use a real example (sans domain) I don't want 'new-product' pages appearing in SERPS. They dilute link equity for the categories they replicate and often contain identical products to the main categories and subcategories. I don't want to no index them all together I'd rather tell Google they are the same as the higher category/sub category. (discussion whether a noindex/follow tag would be better?) If I canonicalize new-products/ceiling-lights-c1/kitchen-lighting-c17/kitchen-ceiling-lights-c217 to /ceiling-lights-c1/kitchen-lighting-c17/kitchen-ceiling-lights-c217 I then subsequently discover that everything in kitchen-ceiling-lights-c217 is already in /kitchen-lighting-c17 and I decide to canonicalize those two - so I place a /kitchen-lighting-c17 canonical on /kitchen-ceiling-lights-c217. Then what happens to the new-products canonical? Is it the same rule - does it pass 85% of link equity back to the non new-product URL and 85% of that back to the category? does it just not work? or should I do noindexi/follow Now before you jump in: Let's assume these are done over a period of time because the obvious answer is: Canonicalize both back to /ceiling-lights-c1/kitchen-lighting-c17 I know that and that is not what I am asking. What if they are done in a sequence what is the real result? I don't want to patronise anyone but please read this carefully before giving an answer. Regards Nigel Carousel Projects.
Intermediate & Advanced SEO | | Nigel_Carr0 -
Rankings rise after improving internal linking - then drop again
I'm working on a large scale publishing site. I can increase search rankings almost immediately by improving internal linking to targeted pages, sometimes by 40 positions but after a day or two these same rankings drop down again, not always as low as before but significantly lower than their highest position. My theory is that the uplift generated by the internal linking is subsequently mitigated by other algorithmic factors relating to content quality or site performance or is this unlikely? Does anyone else have experience of this phenomenon or any theories?
Intermediate & Advanced SEO | | hjsand1 -
Does Navigation Bar have an effect on the link juice and the number of internal links?
Hi Moz community, I am getting the "Avoid Too Many Internal Links" error from Moz for most of my pages and Google declared the max number as 100 internal links. However, most of my pages can't have internal links less than 100, since it is a commercial website and there are many categories that I have to show to my visitors by using the drop down navigation bar. Without counting the links in the navigation bar, the number of internal links is below 100. I am wondering if the navigation bar links affect the link juice and counted as internal links by Google. The Same question also applies to the links in the footer. Additionally, how about the products? I have hundreds of products in the category pages and even though I use pagination I still have many links in the category pages (probably more than 100 without even counting the navigation bar links). Does Google count the product links as internal links and how about the effect on the link juice? Here is the website if you want to take a look: http://www.goldstore.com.tr Thank you for your answers.
Intermediate & Advanced SEO | | onurcan-ikiz0 -
Attribution of port number to canonical links...ok?
Hi all A query has recently been raised internally with regard to the use of canonical links. Due to CMS limitations with a client who's CMS is managed by a third party agency, canonical links are currently output with the port number attributed, e.g. example.com/page:80 ...as opposed to the correct absolute URL: example.com/page Note port number are not attributed to the actual page URLs. We have been advised that this canonical link functionality cannot be amended at present. My personal interpretation of canonical link requirements is that such a link should exactly match the absolute URL of the intended destination page, my query is does this extend to the attribution of port number to URLs. Is the likely impact of the inclusion of such potentially incorrect URLs likely to be the same as purely incorrect canonical links. Thanks
Intermediate & Advanced SEO | | 26ryan0 -
Should my back links go to home page or internal pages
Right now we rank on page 2 for many KWs, so should i now focus my attention on getting links to my home page to build domain authority or continue to direct links to the internal pages for specific KWs? I am about to write some articles for several good ranking sites and want to know whether to link my company name (same as domain name) or KW to the home page or use individual KWs to the internal pages - I am only allowed one link per article to my site. Thanks Ash
Intermediate & Advanced SEO | | AshShep10 -
Rel="canonical" and rel="alternate" both necessary?
We are fighting some duplicate content issues across multiple domains. We have a few magento stores that have different country codes. For example: domain.com and domain.ca, domain.com is the "main" domain. We have set up different rel="alternative codes like: The question is, do we need to add custom rel="canonical" tags to domain.ca that points to domain.com? For example for domain.ca/product.html to point to: Also how far does rel="canonical" follow? For example if we have:
Intermediate & Advanced SEO | | AlliedComputer
domain.ca/sub/product.html canonical to domain.com/sub/product.html
then,
domain.com/sub/product.html canonical to domain.com/product.html0 -
Rel=canonical tag on original page?
Afternoon All,
Intermediate & Advanced SEO | | Jellyfish-Agency
We are using Concrete5 as our CMS system, we are due to change but for the moment we have to play with what we have got. Part of the C5 system allows us to attribute our main page into other categories, via a page alaiser add-on. But what it also does is create several url paths and duplicate pages depending on how many times we take the original page and reference it in other categories. We have tried C5 canonical/SEO add-on's but they all seem to fall short. We have tried to address this issue in the most efficient way possible by using the rel=canonical tag. The only issue is the limitations of our cms system. We add the canonical tag to the original page header and this will automatically place this tag on all the duplicate pages and in turn fix the problem of duplicate content. The only problem is the canonical tag is on the original page as well, but it is referencing itself, effectively creating a tagging circle. Does anyone foresee a problem with the canonical tag being on the original page but in turn referencing itself? What we have done is try to simplify our duplicate content issues. We have over 2500 duplicate page issues because of this aliasing add-on and want to automate the canonical tag addition, rather than go to each individual page and manually add this tag, so the original reference page can remain the original. We have implemented this tag on one page at the moment with 9 duplicate pages/url's and are monitoring, but was curious if people had experienced this before or had any thoughts?0 -
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
