Open Graph Protocol is really a schema markup (It's also known as a vocabulary) developed by Fb in order to mix and relate Website pages and generate its rich illustration within the social graph. In follow, Open Graph allows Facebook's Like videos and documentation about including correct schema information on https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-google-rich-snippets-json-ld-opengraph-twitter-tags-schemaorg.html