What is an Open Graph Checker?
When a shared link shows no image and a wrong title, the page is missing Open Graph tags, and shares quietly underperform everywhere from WhatsApp to LinkedIn.
This checker fetches the live page and reports each og:/twitter: tag with missing ones flagged, and previews the og:image so you see what platforms will render.
Frequently asked questions
I fixed the tags but WhatsApp still shows the old preview: why?
Platforms cache previews for days. Their debuggers (LinkedIn Post Inspector, Facebook Sharing Debugger) force a refresh.
Which tags are the minimum?
og:title, og:description, og:image and og:url cover every major platform; twitter:card upgrades the X rendering.
What should the image be?
1200×630, under ~1MB, with the subject centered: side crops vary by platform.
Does this run JavaScript?
No: like most social scrapers, it reads the raw HTML. Tags injected client-side are invisible to sharing platforms too, which is exactly the problem this reveals.