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While I’m searching all the index page of my blog I found that Google cached one of my blog page http://example.com/page.html

as well as


These two pages are showing while I searched site:http://example.com. I’m so afraid about it because these two pages are same with same content. Does google consider these two pages as duplicate? If so what can I do now? Is it really a big problem to my blog?

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up vote 2 down vote accepted

Since multiple URLs can be used to pull up the same content you need to use canonical URLs to tell Google which one is the primary URL. In your case it would be:

<link rel="canonical" href="http://www.example.com/page.html" />
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Where i have to put this code? I know Canonical tag should be placed on the header tag of a page but in blogspot every post don't have header tags. – Sathiya Kumar Jun 26 '13 at 18:47
That i don't know as i don't use blogger. But since Google owns it there has to be a way to get this done. Hopefully someone can chime in with what that is. – John Conde Jun 26 '13 at 19:08
@JohnSanjay If you're using blogspot check to confirm that Google's not already inserting canonical links there. I checked a friend's blogspot and it has canonical in the header. If it's already there and Google's still caching both I wouldn't worry about it. – joshuahedlund Jun 28 '13 at 15:43

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