An eCommerce site built with Modx CMS. I found lots of auto generated duplicate page issue on that site. Now I need to disallow some pages from that category. Here is the actual product page url looks like
product_listing.php?cat=6857
And here is the auto generated url structure
product_listing.php?cat=6857&cPath=dropship&size=19
Can any one suggest how to disallow this specific category through robots.txt. I am not so familiar with Modx and this kind of link structure.
Your help will be appreciated.
Thanks