Big problem with duplicate page content

[ana_g]

Hello!

I am a beginner SEO specialist and a have a problem with duplicate pages content. The site I'm working on is an online shop made with Prestashop. The moz crawl report shows me that I have over 4000 duplicate page content. Two weeks ago I had 1400.

The majority of links that show duplicate content looks like bellow:
http://www.sitename.com/category-name/filter1
http://www.sitename.com/category-name/filter1/filter2

Firstly, I thought that the filtres don't work. But, when I browse the site and I test it, I see that the filters are working and generate links like bellow:
http://www.sitename.com/category-name#/filter1
http://www.sitename.com/category-name#/filter1/filter2

The links without the # do not work; it messes up with the filters.
Why are the pages indexed without the #, thus generating me duplicate content?
How can I fix the issues?
Thank you very much!

[donford]

Hi Ana

Based on my personal experience with CMS such as Prestashop, they are using URL re-write methods in the .httaccess file. If they are not set up correctly a crawler such as Moz Bot will end up at the wrong url, thus indexing it. Since you can navigate the site and get the correct URLS through clicking, my first thought would be to look on the Prestashop forums to see if there is any updates or advice on fixing the navigation.

[David-Kley]

Check the prestashop forums, and see if another user has a custom htaccess rule you can put in place. Most likely this is a simple error that can be fixed using url rewriting. If you cannot set the items to redirect for any reason,  set the offending pages to no-index in your robots.txt file.

[ana_g]

Thank you!