# WhatsApp Open Graph

## Test and debug your Open Graph tags for WhatsApp

### WhatsApp 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 | WhatsApp/2.1.8 |

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

WhatsApp uses standard Open Graph meta tags to generate link previews in chats. It shares crawling infrastructure with Facebook (via `facebookexternalhit`) and starts fetching URLs as you type, before the message is even sent. Because it doesn’t execute JavaScript, your OG tags must be present in the initial HTML response.

This guide covers how WhatsApp’s crawler works, which tags produce the best previews, image sizing, cache behavior, and the most common issues that prevent previews from appearing.

## What links look like on WhatsApp

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

Without Open Graph

This site doesn't have Open Graph

WhatsApp Open Graph

opengraphplus.com

Oh

With Open Graph

Sites with Open Graph look like this

WhatsApp Open Graph

opengraphplus.com

Nice!

### Debug WhatsApp Open Graph tags

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