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Social Media Preview Checker

Paste any link — a blog post, product page, or landing page — and see how it will appear when shared on X, Facebook, LinkedIn and more, plus the raw Open Graph and Twitter Card tags behind it.

Networks to preview

Previews are a best-effort approximation. Each network runs its own scraper and caches results, so live cards may differ. Use each platform's official debugger to force a re-scrape.

Frequently Asked Questions

How does this preview checker work?
When you enter a URL, the page is fetched and its <head> is parsed to extract the Open Graph (og:*) and Twitter Card (twitter:*) meta tags — the same tags social networks read. We then reconstruct how X, Facebook, and LinkedIn would render a share card from those tags, applying each platform’s own image and title fallback rules.
Why is my image not showing in the preview?
The most common causes are a missing or empty og:image tag, a relative image path (use an absolute URL like https://yoursite.com/og.png), an image served over HTTP instead of HTTPS, or one that's behind authentication or blocked to crawlers. Some networks also skip images that are too small or too large. Check the diagnostics panel above — it flags these issues directly.
My real share card looks different from the preview — why?
Each network runs its own crawler and caches the result, sometimes for days. If you recently changed your tags, the platform may still show the old card. Use the official debuggers to force a re-scrape and see exactly what each one reads:
What image size should I use for og:image?
1200×630px (a 1.91:1 ratio) is the safe recommendation that most networks display well as a large card. Keep the file under ~5 MB, serve it over HTTPS, and use an absolute URL. For X to render the large image card, also set twitter:card to summary_large_image; otherwise it falls back to a small thumbnail. Pinterest favours taller images (a 2:3 ratio, e.g. 1000×1500px).
Which meta tags do I actually need?
At minimum: og:title, og:description, og:image, and og:url. Facebook and LinkedIn rely almost entirely on these og:* tags. X reads twitter:* tags first and falls back to og:*, so adding twitter:card is worthwhile. The diagnostics panel above flags any of these that are missing.