In additon to elisolution's respond to earlier mentioned, this also checks no matter whether we are literally on the home web site (not just if the canonical was set or not). I analyzed this Alternative a bit and as far as I'm able to see, it really works as envisioned. Or https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html