Troubleshooting Social Media Preview Issues
When shared links show the wrong image, old title, or no preview at all, the problem is usually in your Open Graph markup or server caching. This guide helps you diagnose and fix social sharing preview problems.
Key Takeaways
- Social preview issues are frustrating because they're visible to everyone who sees your shared link.
- If no `og:image` meta tag exists, platforms may grab a random image from the page or show no preview.
- Facebook caches preview data aggressively.
- Add `og:image`, `og:title`, `og:description`, and `og:url` to every public page.
- ### Image URL Not Accessible The image URL must be publicly accessible.
Счётчик символов для соцсетей
Подсчёт символов с учётом лимитов платформ
Common Preview Problems
Social preview issues are frustrating because they're visible to everyone who sees your shared link. Understanding the caching and fetching behavior of each platform is key to fixing them.
Wrong Image or No Image
Missing og:image Tag
If no og:image meta tag exists, platforms may grab a random image from the page or show no preview.
Fix: Add the og:image meta tag with an absolute URL (not relative).
Image Too Small
Facebook requires images to be at least 200x200 pixels. Smaller images are ignored, and the platform falls back to no preview.
Fix: Use images at least 1200x630 pixels for optimal display.
Image URL Not Accessible
The image URL must be publicly accessible. Internal URLs, localhost URLs, or URLs behind authentication won't work.
Fix: Verify the image URL loads in an incognito browser window.
Old/Cached Preview
Facebook Cache
Facebook caches preview data aggressively. After updating your og:tags, use the Facebook Sharing Debugger to force a cache refresh.
Twitter Cache
Use the Twitter Card Validator to preview and refresh cached cards.
LinkedIn Cache
LinkedIn's Post Inspector lets you refresh the cached preview.
Debugging Tools
| Platform | Debugging Tool |
|---|---|
| Sharing Debugger (developers.facebook.com) | |
| Twitter/X | Card Validator (cards-dev.twitter.com) |
| Post Inspector (linkedin.com/post-inspector) |
Prevention
Add og:image, og:title, og:description, and og:url to every public page.
Связанные инструменты
Связанные форматы
Связанные руководства
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