Can't you block an IP right in your router?
nostr:npub18ams6ewn5aj2n3wt2qawzglx9mr4nzksxhvrdc4gzrecw7n5tvjqctp424 do you have a “how to” block ip for my kids?
Discussion
you can. there are various degress and levels of parentals controls, based on your technology stack and your personal capabilities.