The module automatically provides a default canonical url to all your products, category, CMS pages only. By default, the module utilizes The present url from the site given that the default canonical url. You can use a Resource like AuthorityLabs to trace the rankings for every of your internet site’s https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html