Here is a list of DNS servers having a range of characteristics:
- Alternate DNS: 198.101.242.72 and 23.253.163.53 & IPv6 2001:4800:780e:510:a8cf:392e:ff04:8982 and 2001:4801:7825:103:be76:4eff:fe10:2e49
- AdGuard DNS: 176.103.130.130 and 176.103.130.131 & IPv6 2a00:5a60::ad1:0ff and 2a00:5a60::ad2:0ff
- Cloudflare: 1.1.1.1 and 1.0.0.1
- Comodo Secure: 8.26.56.26 and 8.20.247.20
- DNS.Watch:* 84.200.69.80 and 84.200.70.40& IPv6 2001:1608:10:25::1c04:b12f and 2001:1608:10:25::9249:d69b
- FreeDNS:* 45.33.97.5 and 37.235.1.174
- Google Public DNS: 8.8.8.8 and 8.8.4.4
- OpenDNS/Cisco: 208.67.222.222, 208.67.220.220 and 208.67.222.123
- OpenNIC: 94.247.43.254 and 192.71.245.208 & IPv6 2a00:dcc0:eda:88:245:71:858e:a15 and 2a00:f826:8:1::254
- Quad9/IBM: 9.9.9.9 and 149.112.112.112
- UltraDNS/Neustar: 156.154.70.5 and 156.154.71.5 or with some threats blocked 156.154.70.2 and 156.154.71.2 & IPv6 2610:a1:1018::5 and 2610:a1:1019::5 or with some threats blocked 2610:a1:1018::2 and 2610:a1:1019::2
- UncensoredDNS:* 91.239.100.100 and 89.233.43.71 & IPv6 2001:67c:28a4:: and 2a01:3a0:53:53:: This service is turning off clear text lookups in September 2022, config help at: https://github.com/censurfridns/client-configs.
- Verisign Public DNS: 64.6.65.6 and 64.6.64.6 & IPv6 2620:74:1b::1:1 and 2620:74:1c::2:2
[*] No logging
- dig @156.154.70.5 www.nytimes.com
- Or a Linux-based open source DNS Performance Test, a shell script named DNSPerfTest.
- If you can't run dig, you can use the Geektools Dig webpage to run the same queries.
Here is a useful write-up for a range of differen platforms https://linuxize.com/post/how-to-clear-the-dns-cache/