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When I add meta data and a canonical reference to my blog tags for my on-site blog which works using a wordpress.org template, Roger generates errors of duplicate content. How can I avoid this problem? I want to use up to 5 tags per post, with the same canonical reference and each campaign scan generates errors/warnings for me!

Without knowing I created multiple URLs to the same page destinations on my website. My ranking is poor and I need to fix this problem quickly. My web host doesn't understand the problem!!! How can I use canonical tags? Can somebody help, please.