Open Graph tags don't affect rankings. They decide something narrower and easier to forget: whether your link renders as a card with an image, or as a bare grey link that people scroll past. I got curious about what's actually in the wild, so I fetched the homepages of 78 well-known domains and parsed every <meta> tag whose property or name started with og: or twitter: . 62 came back usable. Here's what I found, including one failure mode I had never considered. ...