Open Graph is a set of page details that helps social apps create a preview when someone shares a link. It is like a cover card for a web page, with a picture, title, and short description.
When a person pastes a link into a message, the app may use these details to show what the page is about before it is opened.
Choose a picture and wording that match the real page. A preview can invite people to visit, but misleading details can make them lose trust when they arrive.