Just wanted to clear a doubt. I own a blog where I post regularly and gets a decent traffic. I have a main category (eg : abc) and sub-categories under main category (abc). So when I blog a new post, I select the sub-category and publish them. All my categories and sub-categories are indexed. I allowed the categories to be indexed in Google. Now when viewing my blog, the blog post which I marked in a sub-category appears both in Main category (example.com/category/abc) and also the post appears on sub-category (example.com/category/abc/xyz). So will it be considered as duplicate anyway ? If some one would help, will be great. thanks in advance.