Reply To: Locking down iOS to prevent DNS changes

I can answer that one, I think.  Provided the laptop or computer your user (presumably child) uses, has a separate account that does not have administrative rights, they won’t be able to change the DNS.  A second account on your PC has admin rights, and it’s there that you set the DNS to cleanbrowsing.org’s DNS.  That’s what I did for my childrens’ devices.