Rel=canonical for similar (not exact) content?
-
Hi all,
We have a software product and SEOMOZ tools are currently reporting duplicate content issues in the support section of the website.
This is because we keep several versions of our documentation covering the current version and previous 3-4 versions as well.
There is a fair amount of overlap in the documentation. When a new version comes out, we simply copy the documentation over, edit it as necessary to address changes and create new pages for the new functionality.
This means there is probably an 80% or so overlap from one version to the next. We were previously blocking Google (using robots.txt) from accessing previous versions of the sofware documentation, but this is obviously not ideal from an SEO perspective.
We're in the process of linking up all the old versions of the documenation to the newest version so we can use rel=canonical to point to the current version.
However, the content isn't all exact duplicates. Will we be penalized by Google because we're using rel=canonical on pages that aren't actually exact duplicates?
Thanks,
Darren.
-
Darren, nopes. You should be good doing this. You are essentially doing a 301 redirect and you are trying to tell that (current) page is the most important / most relevant page and that's the information/directive that Google is seeking from the Webmaster.
Just do 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
-
404 or rel="canonical" for empty search results?
We have search on our site, using the URL, so we might have: example.com/location-1/service-1, or example.com/location-2/service-2. Since we're a directory we want these pages to rank. Sometimes, there are no search results for a particular location/service combo, and when that happens we show an advanced search form that lets the user choose another location, or expand the search area, or otherwise help themselves. However, that search form still appears at the URL example.com/location/service - so there are several location/service combos on our website that show that particular form, leading to duplicate content issues. We may have search results to display on these pages in the future, so we want to keep them around, and would like Google to look at them and even index them if that happens, so what's the best option here? Should we rel="canonical" the page to the example.com/search (where the search form usually resides)? Should we serve the search form page with an HTTP 404 header? Something else? I look forward to the discussion.
Technical SEO | | 4RS_John1 -
Do mobile and desktop sites that pull content from the same source count as duplicate content?
We are about to launch a mobile site that pulls content from the same CMS, including metadata. They both have different top-level domains, however (www.abcd.com and www.m.abcd.com). How will this affect us in terms of search engine ranking?
Technical SEO | | ovenbird0 -
Redirecting Canonical Hostnames
Hi, I want to rewrite all the url pages of "site.com" to "www.site.com". I read the moz redirection article and i concluded that this would be the best approach. RewriteCond %{HTTP_HOST} !^www.seomoz.org [NC]
Technical SEO | | bigrat95
RewriteRule (.*) http://www.seomoz.org/$1 [L,R=301]. But i recieved this error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, webmaster@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. I tried this rewrite too... RewriteCond %{HTTP_HOST} !^www. [NC]
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [L,R=301] It worked but it just rewriting my domain** "site.com"** and not all the subs "site.com/fr/example.php" to "www.site.com" Why it doesn't work properly, it seem to be easy... Could it be a hosting problem? Is there another way to do it? <address> </address> <address> </address> <address> </address> <address> </address>0 -
Rel Canonical ? please help
Can some one please answer a question for me, I have a crawl error stating that I have [#### Rel Canonical 326](http://pro.seomoz.org/campaigns/243472/issues/18) Can you please advise me on how serious these Errors are? I was told by one person not to worry but It seems far to many to me. thanks
Technical SEO | | Chris__Chris0 -
301s vs. rel=canonical for duplicate content across domains
Howdy mozzers, I just took on a telecommunications client who has spent the last few years acquiring smaller communications companies. When they took over these companies, they simply duplicated their site at all the old domains, resulting in a bunch of sites across the web with the exact same content. Obviously I'd like them all 301'd to their main site, but I'm getting push back. Am I OK to simply plug in rel=canonical tags across the duplicate sites? All the content is literally exactly the same. Thanks as always
Technical SEO | | jamesm5i0 -
I am Posting an article on my site and another site has asked to use the same article - Is this a duplicate content issue with google if i am the creator of the content and will it penalize our sites - or one more than the other??
I operate an ecommerce site for outdoor gear and was invited to guest post on a popular blog (not my site) for a trip i had been on. I wrote the aritcle for them and i also will post this same article on my website. Is this a dup content problem with google? and or the other site? Any Help. Also if i wanted to post this same article to 1 or 2 other blogs as long as they link back to me as the author of the article
Technical SEO | | isle_surf0 -
Why would you remove a canonical link?
Currently, my client's blog makes a duplicate page every time someone comments on a post. The previous SEO consultant told the developer to not put a canonical link directing it to the main blog post. Did taking out the canonical link result in these duplicate pages? My question is why would she recommend this action? Is it best to now add in the canonical link in or should we implement a 301 redirect or insert a index: no follow? Would adding a canonical link keep duplicate pages from happening in the future?
Technical SEO | | Scratch_MM0 -
Syndication: Link back vs. Rel Canonical
For content syndication, let's say I have the choice of (1) a link back or (2) a cross domain rel canonical to the original page, which one would you choose and why? (I'm trying to pick the best option to save dev time!) I'm also curious to know what would be the difference in SERPs between the link back & the canonical solution for the original publisher and for sydication partners? (I would prefer not having the syndication partners disappeared entirely from SERPs, I just want to make sure I'm first!) A side question: What's the difference in real life between the Google source attribution tag & the cross domain rel canonical tag? Thanks! PS: Don't know if it helps but note that we can syndicate 1 article to multiple syndication partners (It would't be impossible to see 1 article syndicated to 50 partners)
Technical SEO | | raywatson0