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Sure, I did this: http://bfy.tw/2hTu

Hi Mirko I think the root fix, is to have a better URL setup (and not have them changing like that). This is something I think only your developer can answer, since I did not set up the site nor do I have expert hands-on experience in Magento - but I do know in theory, it should be possible. I've never heard of another eCommerce site doing it that way. If you need further help from the Moz community, let me know and I'll see if someone else can chime in! But I'd definitely try to talk to your developer about it.

Thanks Ryan. This is the answer I wanted to hear.

Hi Mirko, can we consider this Q&A as answered or are you still struggling with this issue?

If that was the final product page, then yes, you should be using a standard htacess rewrite command to ensure that the final product urls are always www.domain.com/productx But in saying that, the way you had it is totally fine if all the other url possibilities have a canonical tag that points back to optimised version (original product url - www.domain.com/productx) The htacess rewrite it's not something you should be handling manually. Magento has that option inbuilt into it. It would be a fair amount of work if you had to do that manually. and I would just run with the canonical option if that were the case. Any good eCommerce platform should have the inbuilt ability to automatically remove the category folders and other search queries from the final product url. Sometimes it's ok to leave the category folders in the url, it just depends on the products being sold. Below would be an example where I would leave the category folders in the url if I was selling different colored soccer balls. www.sports.com/soccer-balls/black-white/ www.sports.com/soccer-balls/blue-white/ www.sports.com/soccer-balls/red-yellow/