Public DNS Servers

Google Public DNS:

    IPv4:
            Primary: 8.8.8.8
            Secondary: 8.8.4.4
    IPv6:
            Primary: 2001:4860:4860::8888
            Secondary: 2001:4860:4860::8844

Cloudflare:

    IPv4:
            Primary: 1.1.1.1
            Secondary: 1.0.0.1

Quad9 (Malware Blocking Enabled):

    IPv4:
            Primary: 9.9.9.9
            Secondary: 149.112.112.112
    IPv6:
            Primary: 2620:fe::fe
            Secondary: 2620:fe::9

OpenDNS:

    IPv4:
            Primary: 208.67.222.222
            Secondary: 208.67.220.220

DNS.Watch:

    IPv4:
            Primary: 84.200.69.80
            Secondary: 84.200.70.40
    IPv6:
            Primary: 2001:1608:10:25::1c04:b12f
            Secondary: 2001:1608:10:25::9249:d69b

Comodo Secure DNS:

    IPv4:
            Primary: 8.26.56.26
            Secondary: 8.20.247.20