# Threads Open Graph

## Test and debug your Open Graph tags for Threads

### Threads 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 | facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php) |

[Official docs](https://developers.facebook.com/docs/sharing/webmasters/images)

Threads is built on Meta’s shared infrastructure, so it uses the same `facebookexternalhit` crawler and Open Graph tag processing as Facebook and Instagram. When someone shares a link on Threads, the crawler fetches your page and builds a card-style preview from your OG meta tags.

This guide covers how the Threads crawler works, which tags you need, image sizing, cache behavior, and the most common issues that prevent previews from displaying correctly.

## What links look like on Threads

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

#### Without Open Graph

This site doesn't have Open Graph

#### Threads Open Graph

opengraphplus.com

Oh

#### With Open Graph

Sites with Open Graph look like this

Threads Open Graph

opengraphplus.com

Nice!

### Debug Threads Open Graph tags

Enter your site's URL to see how it looks on Threads.