Quad9¶

https://www.quad9.net/

Recommended: Malware Blocking, DNSSEC Validation (this is the most typical configuration)
IPv4
9.9.9.9
149.112.112.112

IPv6
2620:fe::fe
2620:fe::9

HTTPS
https://dns.quad9.net/dns-query

TLS
tls://dns.quad9.net

https://www.quad9.net/service/service-addresses-and-features