Canonical URL Magento Extension

Magento Canonical URLs extension is a free module for Magento that does not only add 'rel' canonical URL to the head of your website pages, but it allows you to manually set custom canonical links for products (not available in Magento by default). This helps search engines to learn about which page/URL of your website is more relevant for users against a particular search query. Get rid of a duplicate content issue and stay healthy in search engine ranks by using this Magento SEO URLs extension.