Free tool · Meta & structured data
Open Graph checker and social preview
Enter a URL to see how its link preview looks on Facebook, X, LinkedIn, Slack and Discord. The checker lists every Open Graph and Twitter card tag, measures the share image and gives you corrected tags to copy.
Enter a URL to see its link previews.
You get the card each platform builds from your tags, a list of missing or weak tags, and a corrected tag block to copy.
How it works
Three steps, no signup.
Enter a URL
Paste any public page, such as a blog post or a product page.
Compare the previews
See the card each platform builds from your tags, side by side, plus a table of every tag found.
Copy the fixes
Missing or weak tags are flagged. Copy a corrected tag block into your page head.
FAQ
Open Graph Checker questions.
What are Open Graph tags?
Meta tags such as og:title, og:description and og:image that tell social platforms and chat apps what title, text and image to show when someone shares your link.
What size should an og:image be?
1200 by 630 pixels, a 1.91 to 1 ratio, works on Facebook, LinkedIn and X large cards. Keep it under 5 MB and use an absolute https URL.
Does X still have a Card Validator?
X removed the preview from its Card Validator in 2022. This checker fills that gap: it reads your twitter:card tags, falls back to Open Graph the same way X does, and shows the card.
Why does my old preview still show after I fix the tags?
Platforms cache previews. Facebook has a Sharing Debugger to re-scrape a URL, and LinkedIn has Post Inspector. X and Slack refresh on their own schedule, often within a day.
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