Duplicate Content issue in Magento: The product pages are available true 3 URL's! How can we solve this?

[Zanox]

Right now the product page "gedroogde goji bessen" (Dutch for: dried goji berries) is available true 3 URL's!

**http://www.sportvoeding.net/gedroogde-goji-bessen ** =>
By clicking on the product slider on the homepage
http://www.sportvoeding.net/superfood/gedroogde-goji-bessen =>
First go to sportvoeding.net/superfood (main categorie) and than clicking on "gedroogde Goji bessen"
http://www.sportvoeding.net/superfood/goji-bessen/gedroogde-goji-bessen =>
When directly go to the subcategorie "Goji Bessen" true the menu and there clicking on "gedroogde Goji Bessen"

We want to have the following product URL:
http://www.sportvoeding.net/superfood/goji-bessen/gedroogde-goji-bessen

Does someone know´s a good Exetension for this issue?

[JMacSupply]

You need to either redirect the other pages to the URL you want, or make use the canonical tag.

[BrightHealth]

This has been happening for years. Here's my favorite post on the subject:

http://www.mikesmullin.com/development/use-categories-product-urls-magento-seo-without-duplicate-content/

[Zanox]

Redirect and canonical speaks for itself. I don't want to use this. It has to be right from the beginning with no redirects and no canonical tags.

[Zanox]

Thanks for the link. We tried this but it doesn't  work ... any suggestions?

Maybe we're forgetting someting?

[iFong]

In the case where a product can fit under many categories/sub-cats and there's a large number of products, it's better to have the product sit under the domain OR a dedicated product folder (/products/product-name). You're still able to link to this single product from many categories and you'll get a nicer looking URL structure.

Magento has the option built in - System > Config > Catalog > SEO

[stsconsulting]

This patch is for old Magento versions, I used it in magento 1.5 and I'm looking for a solution working for magento 1.9