ZenovayTools

Social Preview Checker

Shows how a URL looks when shared on Twitter/X, LinkedIn, Facebook, and Slack. Checks og:title, og:image, twitter:card, og:description. Verifies og:image reachability. Grade A-F.

How to Use Social Preview Checker

  1. 1Enter the URL you want to preview on social media.
  2. 2The tool fetches the page and reads all Open Graph and Twitter Card meta tags.
  3. 3The og:image URL is verified to be reachable.
  4. 4Preview cards for Twitter/X, LinkedIn, Facebook, and Slack are generated.
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Frequently Asked Questions

Why does my shared link look different on each platform?▾
Each platform has its own rendering rules. Twitter/X prefers twitter:* tags but falls back to og:*. LinkedIn uses og:* tags. Facebook uses og:*. When tags are missing, platforms use different fallbacks — LinkedIn may show no image, Twitter shows a plain text link. This tool shows the effective preview for each platform based on actual tag priority.
What is the recommended og:image size?▾
The recommended og:image size is 1200×630 pixels (1.91:1 aspect ratio). Minimum is 600×315. Twitter summary_large_image card works best with 1200×628. LinkedIn recommends 1200×627. Facebook recommends 1200×630. File size should be under 8MB (Twitter limits to 5MB). Always use HTTPS URLs for images as HTTP images may be blocked.
What is twitter:card and which type should I use?▾
twitter:card controls the card type: 'summary' shows a small 1:1 image; 'summary_large_image' shows a large 2:1 banner image (the most common choice); 'app' is for app store links; 'player' is for embedded video/audio. Without twitter:card, Twitter shows a plain text link with no preview. Most websites should use summary_large_image.
Why is my og:image not showing on LinkedIn?▾
LinkedIn caches previews aggressively. If you just added or changed og:image, use LinkedIn's Post Inspector to force a cache refresh. Common reasons og:image doesn't show: the URL returns a redirect, the server blocks LinkedIn's crawler (Sociograph bot), the image is served from HTTP instead of HTTPS, the image is under 200×200px (LinkedIn minimum), or robots.txt blocks the LinkedIn crawler.
How often do social platforms re-scrape my page?▾
Twitter typically re-scrapes within a few days when a URL is shared. Facebook/LinkedIn cache previews for 24-48 hours and may hold stale data longer. To force a refresh: Facebook has the Sharing Debugger (search Google), LinkedIn has the Post Inspector, Twitter has the Twitter Card Validator. This tool shows current live metadata without cached preview interference.