The module automatically adds a default canonical url to all your products, classification, CMS pages only. By default, the module works by using the current url of your website page since the default canonical url. You may use a Software like AuthorityLabs to track the rankings for each of your https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-google-rich-snippets-json-ld-opengraph-twitter-tags-schemaorg.html