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Rel="canonical" on home page?
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I'm using wordpress and the all in one seo pack with the canonical option checked. As I understand it the rel="canonical" tag should be added to pages that are duplicate or similar to tell google that another page (one without the rel="canonical" tag) is the correct one as the url in the tag is pointing google towards it.
Why then does the all in one seo pack add rel="canonical" to every page on my site including the home page? Isn't that confusing for google?
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There are mixed opinions on using it on every page, but I think it's very useful on the home-page, for exactly the reasons that @donford suggests. It's easy for the home-page to get a bunch of variants indexed, including tracking parameters.
Originally, Google said that canonical wasn't proactive, but they've eased up on that. Worst case, they may just ignore it, but the All-In-One SEO approach on a blog isn't a bad bet. It's just so easy for dynamic sites to spin off duplicate URLs that it's better to be proactive.
I've never seen a penalty or devaluation due to using canonical when it's not necessary. I think Bing implied that they may ignore it if they see it too often, but I've never even seen a concrete example of that happening. It's so commonplace now that you'd hear about it if sites were being penalized.
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It would also make sense if you're home page generates something like
www. A Site.com
www. A Site.com/
www. A Site.com/index.php
www. A Site.com/index.php/This prevents duplicate page content issues as those pages while the exact same, are different URL's. The canonical tag should point to a single page whichever one is the real url for your site.
Hope that helps,
Don
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it is confusing indeed.. had the same problem but read a lot about in on internet and Woj Kwasi is absolutely right.
It tells google, hey look, this is the original page with this original content.
also: use it in combination with htaccess files and you should be able to fix every problem
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It's just saying to Google that the page it's on is the originator of the content
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