Open Graph Protocol can be a schema markup (It's also known as a vocabulary) made by Facebook in order to mix and relate Net pages and create its rich representation within the social graph. In practice, Open Graph makes it possible for Fb's Like Include manually: makes it possible for https://www.presta-addons-modules.com/en/free-modules/prestashop-social-media-like-floating-sidebar-on-left-and-right-side-on-all-pages.html