maybe you should have a look to pi-hole.
https://pi-hole.net/
https://docs.pi-hole.net/guides/dns-over-https/
Upstream DNS Providers:
https://docs.pi-hole.net/guides/upstream-dns-providers/
Pompeo mentioned today the "Battle Hymn Of The Republic".
OpenDNS Home (owned by Cisco)¶
Built-in features include a phishing filter, this is the OpenDNS version the Pi-hole would use if you select it during setup.
208.67.222.222
208.67.220.220
208.67.222.220
208.67.220.222
2620:119:35::35 (IPv6)
2620:119:53::53 (IPv6)
More information on OpenDNS Home + OpenDNS Wikipedia Page
OpenDNS also provides the OpenDNS FamilyShield (free)- option. The service blocks pornographic content, including our “Pornography,” “Tasteless,” and “Sexuality” categories, in addition to proxies and anonymizers (which can render filtering useless). It also blocks phishing and some malware.
208.67.222.123
208.67.220.123
https://servers.opennic.org/