Public DNS Reslover

⇨ CloudFlare Public DNS: 1.1.1.1 / 1.0.0.1 (APNIC)
    https://blog.cloudflare.com/announcing-1111/
    https://www.ithome.com.tw/news/122204
⇨ Google Public DNS: 8.8.8.8 / 8.8.4.4
⇨ Quad 9: 9.9.9.9
    https://www.quad9.net/
    IBM、Global Cyber Alliance和Packet Clearing House

⇨ OpenDNS: 208.67.222.222 / 208.67.220.220
    OpenDNS Family: 208.67.222.123 / 208.67.220.123
⇨ Comodo Secure: 156.154.70.22 (NeuStar) / 156.156.71.22 (AFNIC)
⇨ DNS Advantage: 156.154.70.1 / 156.154.71.1 (NeuStar)
⇨ Norton DNS: 198.153.192.1 / 198.153.194.1 (Symantec)
⇨ DigitalOcean DNS
    https://www.digitalocean.com/community/tutorials/an-introduction-to-digitalocean-dns

DNS Resolvers Performance compared: CloudFlare x Google x Quad9 x OpenDNS