Google's Spam sheriff Matt-cutts recently released a video about duplicate content. He said that there are 25% duplicate content exist over the web. So he suggest to use rel=canonical tag to help to secure our Page Rank. As well as it will help Google to identify your blog or website primary page. You can directly watch the video about rel=canonical tag from Matt-cutts.
We should know little bit about rel=canonical tag. A canonical tag make a page preferred version of a set of pages with highly similar content. That means if same article with different post title then canonical tag make a most preferred version in search engine listing. For example, one page might display articles sorted in alphabetical order, while other pages display the same articles listed by rating and search relevancy.
So if your website or blog contain canonical tag then Google will index only one version for search results. But it can vary according to relevant search query.
The attribute rel="canonical" you have to add after <head> section of the non-canonical version of the page. rel="canonical" attribute identify sets of identical content and suggest to Google:
Of all these pages with identical content, this page is the most useful. Please prioritize it in search results.
Matt Cutts also said though you are publishing duplicate content but it won't affect your site unless you are doing it for spam-related reasons. If you don't doing spam then it will help your ranking safe.
How to add rel="canonical" attribute in Blog?
This is very simple trick that we can add rel="canonical" attribute in our blog. Just write the attribute like below:
<link href='http://www.yourblogURL.com/' rel='canonical'/>
for example in case of my blog I have added rel="canonical" attribute like below:
<link href='http://www.bloggerspice.com/' rel='canonical'/>
Step 1 Log in to your blogger account and Click on Template ->
Step 2 Now click on Edit HTML-> Unfold code ?
Step 3 Now find <head > by Pressing Ctrl + F
Step 4 And Paste the below code after/below <head > and save your template
<link href='http://www.yourblogURL.com/' rel='canonical'/>
Hope it will help you to secured your page rank as well as search engine treat your site as friendly. Oh! don't forget to change yourblogURLwith your blog name. If you need any help then feel free to leave a comment.
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