# Microsoft Teams Open Graph

## Test and debug your Open Graph tags for Microsoft Teams

### Microsoft Teams 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; SkypeUriPreview; +https://www.skype.com) |

[Official docs](https://learn.microsoft.com/en-us/microsoftteams/platform/resources/bot-v3/bots-text-formats)

Microsoft Teams generates link unfurl previews when someone pastes a URL in a chat or channel, using a server-side crawler inherited from the Skype era. A major quirk is that Teams prioritizes Twitter Card tags over Open Graph tags when both are present – so `twitter:title` will override `og:title`, which catches many developers off guard.

This guide covers how the `SkypeUriPreview` crawler works, which tags Teams reads (including Schema.org/JSON-LD for richer Adaptive Card previews), image requirements, the 30-minute server-side cache, and the most common issues including corporate firewall problems unique to enterprise deployments.

## What links look like on Microsoft Teams

### The difference Open Graph tags make when sharing a link.

Without Open Graph  
This site doesn't have Open Graph  
opengraphplus.com  
Microsoft Teams Open Graph  
Oh

With Open Graph  
Sites with Open Graph look like this  
opengraphplus.com  
Microsoft Teams Open Graph  
  
Nice!

### Debug Microsoft Teams Open Graph tags  
Enter your site's URL to see how it looks on Microsoft Teams.