Content Filtering / DNS Service - any recommendations?

I am trying to implement a DNS / Content Filtering service like one of the following

  • SafeDNS
  • OpenDNS
  • Cloudflare Gateway

Question: For SafeDNS I changed the resolv.conf and also got it persist. But it requires additional agents like the DDCLIENT

this again it not supported on SailFishOS

Before starting anything here: any recommendations and comments welcome.
Objective is website filtering for our young ones…


Use that way is does not matter if you have a PlayStation or a phone

Thanks for the answer. I am using pi-hole already in MY network. The phone ist just moved around and at the first public wifi all filters are gone.