Open Graph Protocol is a schema markup (It is usually known as a vocabulary) created by Fb in order to mix and relate World-wide-web pages and produce its rich illustration within the social graph. In exercise, Open Graph enables Facebook's Like Pick Google Search, Schema.org, Open Graph or Twitter schema https://www.presta-addons-modules.com/en/front-office/prestashop-adsense-on-home-page-selected-left-right-column.html