What are the limitations of website blocking on iPhone?

Question

Accepted Answer

Website blocking on iPhone works differently from app blocking, and there are a few important limitations to be aware of.

Limitations

Keyword blocking only works in Safari — other browsers need full domain addresses.

In-app browsers are not blocked — if you open a link inside Instagram or Twitter, the built-in browser inside those apps may bypass website blocking.

Incognito or private browsing may bypass blocking — especially in less common browsers.

Some browsers are not supported — unusual browsers may bypass website blocking entirely.

A site may flash briefly before being blocked — this is normal iOS behavior.

Websites can only be blocked with Time or Location schedules — not with Open Limit or Usage Limit schedules.

Supported browsers

Safari — fully supported (domains and keywords).

Chrome, Edge, Firefox, Brave — supported for domain blocking, but not keyword blocking.

Less common browsers — may bypass blocking entirely.