When you've got several language or state versions that you choose to mark up with hreflang, then Each and every of such versions ought to have a canonical tag pointing to by itself. Should you’re syndicating or republishing articles on other web sites, this is another time and energy to https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html