Custom link previews control the card that supported messaging and social apps
can display when someone shares a short link.
Open Custom Link Preview while creating or editing the link. You can provide
a title, description, and image. You can upload an image or use an image URL
when the field supports it.
Keep the title short, use a description that matches the destination, and choose
an image with enough contrast for small cards. Save the link, then test it in
the intended sharing app.
Social platforms cache preview metadata. A platform can continue showing an
older card for a while after you update the link.
- Open the link editor and find the preview or SEO fields.
- Add a title that identifies the destination.
- Add a short description that accurately explains what opens after the click.
- Select the supported image or image reference offered by the editor.
- Save, then paste the short URL into the intended platform’s preview tool or
draft composer.
Preview fields do not change the destination page. They provide metadata to
social crawlers and messaging applications that inspect the short URL. A
platform can ignore a field, crop the image, or replace it with destination
metadata according to its own rules.
Refresh an old card
First confirm that the link contains the new values. Then use the platform’s
debugger or refresh tool when available. Sending the URL with a temporary query
parameter can create a new cache key, but it also creates a different shared
URL and should be used deliberately.
Do not use a preview that misrepresents the final destination. It can reduce
visitor trust and trigger safety review. 
