Websites are not blocked in preview
If a website shows a preview before loading fully — for example, in some browsers or link previews — AppBlock may not block it at that stage.
Why this happens
AppBlock blocks websites by detecting their URL. During a preview, the URL can change dynamically or load in a way that AppBlock doesn’t catch in time.
What you can do
- Add the specific dynamic URL manually to your blocklist.
- Use keyword blocking to catch variations of the URL — this is more reliable for sites that change their URL structure during previews (see “How to block websites on Android” for details on keyword blocking).