Xfinity Dns Servers. You can use these dns server ips in your windows or mac dns settings to fetch public ips of domains from that server. These DNS servers are among the safest and most secure.
DNS Neutrality: The servers do not censor any DNS requests. Cloudflare do NOT publish or recommend use of SPKI pins with their servers. You can use these dns server ips in your windows or mac dns settings to fetch public ips of domains from that server.
If, on the other hand, you want to use the DNS servers that your specific ISP, like Verizon, AT&T, Comcast/XFINITY, etc., has determined is.
This differs to some ISPs around the world who actively censor what you.
Details are provided in the Stubby config file for users who want to enable cloudflare-dns.com. Comcast cable internet dns servers are as follows: National DNS Server IP Address. These servers do not belong to internet service providers but other companies ranging from Google, OpenDNS, DNS.