Free Online Open Graph Checker

1. View the page source and copy the HTML, then paste it into the input box.
2. Confirm the four required tags — og:title, og:type, og:image, og:url — are all present.
3. Inspect the rendered card preview to check the image, title and description look right.
4. If og:image is missing or cropped, set one at 1200×630 (1.91:1) and re-paste.
5. Add og:description if absent to give the share card a clear summary line.

The Open Graph protocol, originally from Facebook, lets a page control how it appears when shared on social platforms. A handful of og: meta tags define the link card: og:title, og:type, og:image and og:url are the four required properties, with og:description strongly recommended. When these are missing or wrong, platforms fall back to guessing — often producing a blank, cropped or mislabelled preview that hurts click-through.

This checker parses the HTML you paste, lists every og: tag it finds, and renders a Facebook-style preview using og:image, og:title, og:description and og:url so you can see the card before you share. It explicitly flags any of the four required properties that are absent. A common pitfall it helps catch is a missing or wrongly sized og:image — the widely recommended size is 1200×630 pixels (a 1.91:1 ratio) so the image fills the card without cropping across platforms.

All parsing is local to your browser and works on pasted source, so you can validate share previews for pages that aren't public yet. For the X/Twitter-specific equivalent, use the Twitter Card Checker.