Google Public DNS

8.8.8.8 \\
8.8.4.4 \\


Level 3 Public DNS Server Addresses:

209.244.0.3 \\
209.244.0.4 \\
4.2.2.1 \\
4.2.2.2 \\
4.2.2.3 \\
4.2.2.4 \\

OpenDNS IP Addresses:

208.67.222.222 \\
208.67.220.220 \\

Open-source DNS Benchmark Utility \\
[[https://code.google.com/p/namebench/]]