I found one of my blog post was cached by Google (www.example.com/post.html). I found that comment page of the post was also cached (www.example.com/post.html?showComment=1372054729698). These two pages are showing in Google SERP when I checked cached posts of my blog. Is it possible to use canonical tag on the post www.example.com/post.html?showComment=1372054729698 so that Google won't penalize my original post? Is there any other ways to redirect a blog post?
Is it possible to use canonical tag in Blogger posts?
canonical url;blogger;google cache
You can add canonical tags by editing your blog HTML template. (See this Google support article on how to edit the template HTML: https://support.google.com/blogger/answer/46870?hl=en)Then add code like this to the <head> of the document:<ItemPage><Blogger><link href=<$BlogItemPermalinkURL$> rel=canonical/></Blogger></ItemPage><MainPage><link href=http://www.example.com/ rel=canonical/></MainPage>This uses Bloggers conditional tags (https://support.google.com/blogger/answer/42059?hl=en) so that posts get their permalink as the canonical address (top line) and your blog homepage gets the root URL (bottom line).