Validate Any Link Preview in Seconds
Paste a link, read every Open Graph and Twitter tag it exposes, preview the unfurl per platform, and get a plain-English fix list.
Missing or weak tags? Generate Open Graph images with AI in seconds.
Open Graph Validator FAQ
What the validator checks, how to read the results, and how to fix the most common Open Graph issues.
What does the validator actually check?
It fetches your page's HTML and reads every Open Graph and Twitter Card meta tag — og:title, og:description, og:image, og:url, og:type, twitter:card and more. You get a 0–100 score, a pass/warn/fail checklist, and live previews for X, Facebook, LinkedIn, Slack and Discord.
Why is my link preview missing an image?
Usually one of three reasons: no og:image tag, a relative URL instead of an absolute one, or a file too large or behind auth. Use a full https URL to a 1200×630 image under ~5MB, then re-scrape with each platform's debugger so it drops the cached version.
What is the correct Open Graph image size?
1200×630 (1.91:1). It's the universal sweet spot that renders as a large card on X, Facebook, LinkedIn and Slack without cropping. Keep the file under 5MB and use PNG or JPG — smaller images fall back to a tiny thumbnail.
Do I need both Open Graph and Twitter tags?
Open Graph covers Facebook, LinkedIn, Slack, Discord and most apps, and X falls back to it too. Adding twitter:card and twitter:image gives you explicit control on X, including the large summary_large_image layout. Setting both is best practice and takes a few extra lines.
Why don't my updated tags appear when I share the link?
Platforms cache the first version they scrape. Paste the URL into Facebook Sharing Debugger, LinkedIn Post Inspector, or X's Card Validator to force a fresh fetch. New shares pick up the change within a few minutes.
Fix What the Validator Just Flagged
If the score above flagged a missing or off-brand og:image, this is the shortest path to fixing it — same tab, same URL, four fresh variants.