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Hello Dear SeoMoz, I would like to ask your help with something that I am not sure off. Our ecommerce web site is built with Magento. I have found many problems so far and I know that there will be many more in the future. Currently, I am trying to find the best way to deal with the duplicate content that is produced from the layered navigation (size, gender etc). I have done a lot of research so far in order to understand which might be the best practice and I found the following practices: **Block layered navigation URLSs from the Google Webmaster Tools (**Apparently this works for Google Only). Block these URLs with the robots.txt file Make links no-follow **Make links JavaScript from Magento *** Avoid including these links in the xml site map. Avoid including these link in the A-Z Product Index. Canonical tag Meta Tags (noindex, nofollow) Question If I turn the layered navigation links into JavaScript links from the Magento Admin, the layered navigation links are still found by the crawlers but they look like that: | http://www.mysite.com/# instead of: http://www.mysite.com/girls-basics.html?gender_filte... | Can these new URLS (http://www.mysite.com/# ) solve the duplicate content problems with the layered navigation or do I need to implement other practices too to make sure that everything is done right. Kind Regards Stefanos Anastasiadis