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Hi, Couldn't see categories in my brief look but to answer your other question - If I index both category and tags, should I use canonical URL tag to pass referring to main category. As I want more my categories in SERP results ranking higher? use the canonical tag if the content is the same (duplicated) I recommend using it on the folder closest to the main level. What the tag will do is tell Google "this content is the same - here is the original" and all juice will be fed to the URL you pointed to in the tag. Using the tag won't get more categories in the results as I just mentioned they are not indexed as they are "duplicates" It does however give you a stronger structure to a degree but only if you've got duplicate content due to e.g categories. Just to help you out a big more here is an example of a great way to use the tag: two URLS with the same content www.example.com/author www.example.com/genre/author you would put a tag on www.example.com/genre/author pointing towards www.example.com/author (however you can do it the other way around depending on how you feel) More info here- https://support.google.com/webmasters/answer/139066?hl=en Good luck!