Open Graph Protocol is actually a schema markup (It's also referred to as a vocabulary) designed by Fb in order to combine and relate World wide web pages and make its rich representation within the social graph. In practice, Open Graph lets Fb's Like Include manually: lets to edit manually: https://www.presta-addons-modules.com/en/front-office/prestashop-tawkto-multilingual-live-chat-support.html