Social Share Card Preview

What Are Social Share Cards?

When you paste a URL into Twitter, Facebook, or LinkedIn, the platform's crawler visits the page, reads its meta tags, and renders a rich preview card — showing the page title, description, and an image. These cards dramatically affect click-through rates and how your content is perceived.

Two standards control this: Open Graph (used by Facebook, LinkedIn, and most platforms) and Twitter Cards (Twitter's own extension). This tool checks both and simulates the card each platform would display.

Key Meta Tags to Set

• og:title — the title shown in the card (keep under 60–70 characters)
• og:description — a short description (keep under 200 characters)
• og:image — the preview image URL (recommended: 1200×630px, under 8MB)
• og:url — the canonical URL of the page
• twitter:card — set to summary_large_image for a large banner image

How to Use This Tool

1. Paste any public URL and click Check.
2. Switch between Twitter/X, Facebook, and LinkedIn tabs to see each platform's card.
3. Expand Raw meta tags to see all extracted Open Graph and Twitter Card values.
4. After checking, the page URL updates with ?url= so you can share or bookmark the result.

Frequently Asked Questions

What is a social share card?

When you share a URL on social media platforms like Twitter/X, Facebook, or LinkedIn, the platform fetches the page's meta tags and renders a preview card — showing an image, title, and description. This tool simulates that card for each platform so you can see exactly how your link will appear before posting.

What is the Open Graph protocol?

Open Graph (og:) is a set of meta tags created by Facebook that control how pages appear when shared. Tags like og:title, og:description, og:image, and og:site_name are read by Facebook, LinkedIn, and most other platforms to build the share card.

What are Twitter Card meta tags?

Twitter Card tags (twitter:card, twitter:title, twitter:image, etc.) are Twitter-specific meta tags that control how links appear in tweets. If Twitter Card tags are present, Twitter uses them; otherwise it falls back to Open Graph tags. The twitter:card value determines the card layout: "summary" shows a small thumbnail, "summary_large_image" shows a large banner image.

Why does the image not appear on Twitter but work on Facebook?

Twitter and Facebook may have different image requirements. Twitter requires images to be publicly accessible, under 5MB, and at least 144×144px (summary) or 300×157px (summary_large_image). Also check that your server does not block the Twitter bot's user agent. You can verify with the Twitter Card Validator in Twitter's developer portal.

Is the URL I enter sent to a third party?

No. The URL is fetched by this site's own Cloudflare Worker server to read meta tags. It is not shared with Twitter, Facebook, LinkedIn, or any other party.