Canonical Meta Tag Best Practices
-
I've noticed that some website owners use canonical tags even when there may be no duplicate issues.For examplewww.examplesite.com has a canonical tag.......rel="canonical" href="http://www.examplesite.com/" />www.examplesite.com/bluewidget has a canonical tag.......rel="canonical" href="http://www.examplesite.com/bluewidget/" />Is this recommended or helpful to do this?
-
I prefer to think of it as "index control", since PR sculpting has a history of being abused, but you've covered the big ones. Obviously, good site architecture is the first step. If they tag exists in 2012, I pretty much covered it in this article:
http://www.seomoz.org/blog/duplicate-content-in-a-post-panda-world
-
Sorry about not clarifying that
Tools or tags used to channel spidering and indexing and circulate page rank (e.g. robots.txt file, pagination with rel="next" and rel="prev", x-robots-tag, etc.....)
I just read an article on pagerank sculpting in visibility magazine that inspired my question
-
Sorry about not clarifying that
Tools or tags used to channel spidering and indexing and circulate page rank (e.g. robots.txt file, pagination with rel="next" and rel="prev", x-robots-tag, etc.....)
I just read an article on pagerank sculpting in visibility magazine that inspired my question
-
Sorry, not sure what you mean. Site-wide tags, or tags that perform canonicalization?
-
Thanks for the post Peter!
In addition to the canonical tag are there any others that you guys have heard of people having success with?
-
I'd generally agree with (and thumbed up) Adam - it's harmless and can sometimes help sweep up any stray URLs. I find it especially useful for the home-page, which naturally has a lot of variants.
I'd only add that you often see this in place not so much because it's strategic but because it's easier to implement, especially in a CMS. Telling the system to add a canonical to every version but the canonical URL is a lot more of a pain, so most people don't do it. Originally, Google and Bing suggested this was their preferred method, but it was so immediately obvious that it's easier to put the tag on all versions that I think they completely reversed that.
I've never seen it cause any harm, and I've seen it help a bit more than once.
-
You're welcome.
It's important to note that the use of canonicals or redirects is not intended for directing page rank. They are primarily used to direct users to the most appropriate page and to avoid any duplicate content issues with search engines.
-
Thanks Adam for posting a response. Very helpful. I read an article about pagerank sculpting and it got me thinking about the best use of canonical, robots.txt files, etc...
My site currently does not have any canonical tags or any of the others used to channel page rank. I have been told that the proper use of certain tags can possible help with rankings by directing page rank to the more important pages.
-
I'll add this to what Crimson said,
It doesn't hurt to have canonical tags on all pages.
-
Hi Nathan,
Personally I think it is good practice to use canonical tags for all pages (even those without duplicates).
Although you may not have duplicates of these pages on your site, other sites may try to scrape the content of your site including its pages. As you have the canonical tag on these pages, any content scraper will also add the canonical tag that points to the page on your site. Therefore it is a good idea to have the canonical tag as a preventative measure also.
Hope that helps,
Adam.
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 for multi store
Hello all, I need to make sure I am doing this correctly; I have one website and with two stores (content is mostly identical) with the following canonical tags; UK/EU Store: thespacecollective.com USA/ROW Store: thespacecollective.com/us/ Am I right in thinking that this is incorrect and that only one site should be referencing with the canonical tag? ie; UK/EU Store: thespacecollective.com USA/ROW Store: thespacecollective.com/us/ (please note the removed /us/ from the end of the URL)
Intermediate & Advanced SEO | | moon-boots0 -
Hreflang and canonical tag for new country specific website - different base domain
I have a little different situation compared to most other questions which asks for hreflang and canonical tags for country specific version of websites. This is an SEO related question and I was hoping to get some insight on your recommendations. We have an existing Australian website - say - ausnight.com.au now we want to launch a UK version of this website - the domain is - uknight.co.uk please note, we are not only changing from .com.au to .co.uk.... but the base domain name as well changed - from ausnight to uknight as you can understand, the audience for both websites is different. Both websites has most pages same with same contents.... the questions I have is - Should we put canonical tag on the new website pages? If we don't put canon tag on new website pages, what is the impact on the SEO ranking of current website? I believe we need to put hreflang tag on both websites to tell google that we have another language version (en-au vs en-gb) of the same page. Is this correct?
Intermediate & Advanced SEO | | TinoSharp0 -
Which is the best option for these pages?
Hi Guys, We have product pages on our site which have duplicate content, the search volume for people searching for these products is very, very small. Also if we add unique content, we could face keyword cannibalisation issues with category/sub-category pages. Now based on proper SEO best practice we should add rel canonical tags from these product pages to the next relevant page. Pros Can rank for product oriented keywords but search volume is very small. Any link equity to these pages passed due to the rel canonical tag would be very small, as these pages barely get any links. Cons Time and effort involved in adding rel canonical tags. Even if we do add rel canonical tags, if Google doesn't deem them relevant then they might ignore causing duplicate content issues. Time and effort involved in making all the content unique - not really worth it - again very minimal searchers. Plus if we do make it unique, then we face keyword cannibalisation issues. -- What do you think would be the optimal solution to this? I'm thinking just implementing a: Across all these product based pages. Keen to hear thoughts? Cheers.
Intermediate & Advanced SEO | | seowork2140 -
URL Change Best Practice
I'm changing the url of some old pages to see if I can't get a little more organic out of them. After changing the url, and maybe title/desc tags as well, I plan to have Google fetch them. How does Google know that the old url is 301'd to the new url and the new url is not just a page of duplicate content? Thanks... Darcy
Intermediate & Advanced SEO | | 945010 -
What is the best URL structure for categories?
A client's site currently uses the URL structure: www.website.com/�tegory%/%postname% Which I think is optimised fairly well, as the categories are keywords being targeted. However, as they are using a category hierarchy, often times the URL looks like this: www.website.com/parent-category/child-category/some-post-titles-are-quite-long-as-they-are-long-tail-terms Best practise often dictates (such as point 3 in this Moz article) that shorter URLs are better for several reasons. So I'm left with a few options: Remove the category from the URL Flatten the category hierarchy Shorten post titles two a word or two - which would hurt my long tail search term traffic. Leave it as it is What do we think is the best route to take? Thanks in advance!
Intermediate & Advanced SEO | | underscorelive0 -
Do I need to use canonical tags if I'm 301 redirecting pages?
I just took a job about three months and one of the first things I wanted to do was restructure the site. The current structure is solution based but I am moving it toward a product focus. The problem I'm having is the CMS I'm using isn't the greatest (and yes I've brought this up to my CMS provider). It creates multiple URL's for the same page. For example, these two urls are the same page: (note: these aren't the actual urls, I just made them up for demonstration purposes) http://www.website.com/home/meet-us/team-leaders/boss-man/
Intermediate & Advanced SEO | | Omnipress
http://www.website.com/home/meet-us/team-leaders/boss-man/bossman.cmsx (I know this is terrible, and once our contract is up we'll be looking at a different provider) So clearly I need to set up canonical tags for the last two pages that look like this: With the new site restructure, do I need to put a canonical tag on the second page to tell the search engine that it's the same as the first, since I'll be changing the category it's in? For Example: http://www.website.com/home/meet-us/team-leaders/boss-man/ will become http://www.website.com/home/MEET-OUR-TEAM/team-leaders/boss-man My overall question is, do I need to spend the time to run through our entire site and do canonical tags AND 301 redirects to the new page, or can I just simply redirect both of them to the new page? I hope this makes sense. Your help is greatly appreciated!!0 -
Mobile Sitemap Best Practices w/ Responsive Design
I'm looking for insight into mobile sitemap best practices when building sites with responsive design. If a mobile site has the same urls as the desktop site the mobile sitemap would be very similar to the regular sitemap. Is a mobile sitemap necessary for sites that utilize responsive design? If so, is there a way to have a mobile sitemap that simply references the regular sitemap or is a new sitemap that has all urls tagged with the "" tag with each url required?
Intermediate & Advanced SEO | | AdamDorfman0 -
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