The Open Graph Protocol
Created by Facebook in 2010, the Open Graph protocol transforms URLs into rich preview cards. When someone pastes your link on Facebook, LinkedIn, Slack, Discord, or iMessage, these platforms fetch your OG tags to build a visual card with image, title, and description. Without OG tags, platforms guess from page content — often pulling the wrong image or truncated text. Pages with properly configured OG tags see 2–3x higher engagement on social shares.