Google’s John Mueller recently said that never follows big sites when it comes to doing SEO. The topic was chosen when someone on Reddit raised this topic by saying what to follow Google’s instructions or actions big cites took.
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John Mueller Response:
Image Source: Search Engine Journal
Mueller says the use of canonical tags depends on which pages you want to be indexed. Using a self-referencing canonical on every page helps ensure that all pages of a series get indexed on their own.
Comment On Advantages And Disadvantages Of Using Canonical Tags:
Image Source: Search Engine Journal