Public DNS Probes

Google DNS - 8.8.8.8

Google DNS - 8.8.4.4

OpenDNS - 208.67.222.222

OpenDNS - 208.67.220.220

Cloudflare DNS - 1.1.1.1

Cloudflare DNS - 1.0.0.1

Quad9 - 9.9.9.9

Quad9 - 149.112.112.112