In additon to elisolution's answer earlier mentioned, this also checks no matter whether we are literally on the home web page (not simply whether or not the canonical was set or not). I tested this Alternative a tiny bit and as far as I'm able to see, it works as predicted. https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/31857-automatyczne-google-rich-snippets-json-ld-opengraph-seo.html