Reddit generates link preview cards when users submit URLs as link posts. The preview includes a title, thumbnail image, and domain attribution pulled from your page’s Open Graph meta tags. Reddit delegates much of its metadata fetching to Embedly, a third-party service it acquired, making it unique among social platforms.
Reddit Open Graph
Test and debug your Open Graph tags for Reddit
Reddit Specs
| Image size | 1200x630px |
| Aspect ratio | 1.9:1 |
| Max file size | 5 MB |
| Formats | image/jpeg, image/png, image/webp, image/gif |
| User-Agent | Mozilla/5.0 (compatible; redditbot/1.0; +http://www.reddit.com/feedback) |
How Reddit Crawls Your Pages
Understanding redditbot, Embedly delegation, and how link previews are generated
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Reddit Link Preview Meta Tags
Which meta tags Reddit reads and how Embedly resolves fallbacks
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Image Handling
Image dimensions, formats, and crop behavior across old and new Reddit
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Caching & Invalidation
How Reddit caches link previews and why there's no way to refresh them
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Common Issues
Troubleshooting the most frequent Reddit link preview problems
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What links look like on Reddit
The difference Open Graph tags make when sharing a link.
This site doesn't have Open Graph
Reddit Open Graph
opengraphplus.com
Oh
Sites with Open Graph look like this
Reddit Open Graph
opengraphplus.com
Nice!
Debug Reddit Open Graph tags
Enter your site's URL to see how it looks on Reddit.