I recently started blogging through blogger. On my Google Search Console account, I got the error "Duplicate without user-selected canonical" error. When I inspected the affected pages I saw:


at the end of the affected URLs. I saw a fix online and added the following line in the HTML of my Blogger account:

<link expr:href='data:blog.url' rel='canonical'/> 

I also saw a similar line to the one above which is as follows:

<link expr:href='data:blog.url.canonical' rel= 'canonical'/>

I wanted to ask that is there a difference between these two lines of code. Which one is the correct line? Also if the original URL without ?m=1 is indexed and the URL with ?m=1 is not indexed should I leave it like this or do I need to enter one of the above line in the HTML code of my website?

1 Answer 1


An URL with a parameter is a different URL as compared to one without a parameter. If they both serve the same page then you have a duplicate page. The fix is to put a canonical tag with the preferred URL in it.

What is a canonical URL?

A canonical URL is the URL of the page that Google thinks is most representative from a set of duplicate pages on your site. For example, if you have URLs for the same page (example.com?dress=1234 and example.com/dresses/1234), Google chooses one as canonical.

From developers.google

<link rel="canonical" href="https://www.example.com"> or

<link rel="canonical" href="https://example.com">

are the normal way to specify a canonical, depending on whether you are supporting www. But it is advisable to put in a complete (absolute) Link. If you do not do that then you can still have duplication because of http/https protocol and www/non www preferences.

  • can you write the complete code with the link? Feb 2, 2023 at 7:46
  • Updated the answer. Please remember that you can also contribute to this community that helps you. As per site guidelines when an answer addresses your question, accept it and even upvote it so others can benefit as well. Feb 2, 2023 at 11:48
  • Did the answer work for you ? Jul 3, 2023 at 2:57

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