iMessage link preview checker
iMessage fetches the page from the sender’s device and shows only the title, domain and image or icon.
Tags iMessage reads
| Field | Tags, in fallback order |
|---|---|
| Title | og:title → <title> |
| Image | og:image → apple-touch-icon |
Image requirements
| Recommended | 1200×630 |
|---|---|
| Minimum | 150×150 |
| Maximum weight | Keep under 1 MB |
| Formats | JPEG, PNG |
Card layout
With an image, it shows a large image above a grey bar with the title and domain. Without one, it shows the apple-touch-icon beside the title.
How to refresh the iMessage preview cache
Previews are cached on the device. Change the URL to see an update.
Common problems
- A generic globe icon: add og:image, or an apple-touch-icon at 180×180.
Rule confidence: observed.