Server DNS IPv4 e IPv6 con supporto di DNS-over-HTTPS (DoH), DNS-over-TLS, DNSCrypt e ECS (EDNS Client-Subnet)
| IPv4 | IPv6 | hostname | note |
| 9.9.9.9 149.112.112.112 | 2620:fe::9 2620:fe::fe | dns.quad9.net | Malware Blocking, DNSSEC Validation |
| URL DoH | https://dns.quad9.net/dns-query | ||
| 9.9.9.11 149.112.112.11 | 2620:fe::11 2620:fe::fe:11 | dns11.quad9.net | Malware Blocking, DNSSEC Validation, ECS enabled |
| URL DoH | https://dns11.quad9.net/dns-query | ||
| 9.9.9.10 149.112.112.10 | 2620:fe::10 2620:fe::fe:10 | dns10.quad9.net | Unsecured! (no Malware Blocking, no DNSSEC Validation) |
| URL DoH | https://dns10.quad9.net/dns-query | ||
Fonte: https://www.quad9.net/ (2025-08-27)