In additon to elisolution's reply over, this also checks irrespective of whether we are actually on the house web site (not only if the canonical was established or not). I examined this Alternative a tad and so far as I can see, it works as expected. Or else, you should allow https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html