In additon to elisolution's solution higher than, this also checks whether or not we are literally on the house web page (not simply whether the canonical was established or not). I examined this Alternative somewhat and in terms of I am able to see, it really works as predicted. If not, https://addons.prestashop.com/de/seo-suchmaschinenranking-optimization/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html