Duplicate URLs on eCommerce site caused by parameters
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Hi there,
We have a client with a large eCommerce site with about 1500 duplicate URLs caused by the parameters in the URLs (such as the sort parameter where the list of products are then sorted by price, age etc.)
Example:
First duplicate URL: www.example.com/cars/toyota?sort=price-ascending
Second duplicate URL: www.example.com/cars/toyota?sort=price-descending
Third duplicate URL: www.example.com/cars/toyota?sort=age-descending
Originally we had advised to add a robots.txt file to block search engines from crawling the URLs with parameters but this hasn't been done.
My question: If we add the robots.txt now and exclude all URLs with filters - how long will it take for Google to disregard the duplicate URLs?
We could ask the developers to add canonical tags to all the duplicates but these are about 1500...
Thanks in advance for any advice!
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Hi Jaro,
Please see my answer to your other question.
Perhaps have a read of these two resources to get some ideas as well?
Depending on how your site is structured, the platform and many other factors, there could be other considerations.
-Andy
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