In additon to elisolution's response above, this also checks regardless of whether we are literally on the home website page (not merely whether the canonical was established or not). I tested this Alternative a little and in terms of I can see, it works as expected. Or else, please allow me https://addons.prestashop.com/fr/seo-referencement-naturel/31857-seo-automatique-google-rich-snippets-json-ld-open-graph.html