Quad9 DNS Servers in Global

Quad9
https://www.quad9.net/
Malware Blocking, DNSSEC Validation (this is the most typical configuration)
Primary DNS: 9.9.9.9
Secondary DNS: 149.112.112.112
Primary DNS: 2620:fe::fe
Secondary DNS: 2620:fe::9
Secured w/ECS: Malware blocking, DNSSEC Validation, ECS enabled
Primary DNS: 9.9.9.11
Secondary DNS: 149.112.112.11
Primary DNS: 2620:fe::11
Secondary DNS: 2620:fe::fe:11
Unsecured: No Malware blocking, no DNSSEC validation (for experts only!)
Primary DNS: 9.9.9.10
Secondary DNS: 149.112.112.10
Primary DNS: 2620:fe::10
Secondary DNS: 2620:fe::fe:10

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