Why Notion shows stale data
Notion stores bookmark previews as static content within the page. No automatic refresh cycle. A bookmark created months ago shows the same title, description, and image it fetched originally.
The fix
Delete and re-create the bookmark:
- Click the bookmark block
- Delete it (Backspace/Delete or block menu)
- Paste the URL again
- Select “Create bookmark” from the paste options
Notion re-crawls and fetches current OG tags.
Multiple bookmarks across pages
Each must be refreshed individually. No workspace-wide cache invalidation.
Preventing stale data
For frequently changing content (dashboards, status pages), use an embed block instead of a bookmark. Embeds load the page live in an iframe – always current, but no OG metadata display.
API considerations
API-created bookmarks work the same way. Delete and re-create via the API. There’s no “refresh preview” endpoint.