Public Free DNS Service

Google Public DNS
8.8.8.8
8.8.4.4

OpenDNS
208.67.222.222
208.67.220.220
208.67.222.123
208.67.220.123

Dnspod
119.29.29.29

CloudFlare DNS
1.1.1.1

阿里云公共DNS
223.5.5.5
223.6.6.6

OneDNS
117.50.11.11     
52.80.66.66
117.50.10.10     
52.80.52.52

百度公共DNS
180.76.76.76

Freenom World
80.80.80.80
80.80.81.81

IBM DNS
9.9.9.9

114DNS
114.114.114.114
114.114.115.115

CNNIC SDNS
1.2.4.8
210.2.4.8

V2EX DNS
199.91.73.222
178.79.131.110