try https://controld.com/free-dns
they select the 'family friendly' it should link you to how to setup on any devices as well

edit: if you use paid version, you can configure the DNS to block by site address as well
just setup the DNS by device, just pray the kid dont learn about DNS bypass
can do 30days trial 1st

This post has been edited by jmas: Apr 21 2025, 02:17 PM