Monday, July 21, 2014

Free & Public DNS Servers (Updated July 2014)


Most of the time, your ISP automatically assigns a primary and secondary DNS server when your router or computer requests network information via DHCP. But what if those ISP-provided DNS servers aren't reliable or you're troubleshooting an issue and you suspect that DNS might not be working properly? 
Luckily there are several free DNS servers that you can use instead of the ones assigned to you.


Provider
Primary DNS Server Secondary DNS Server

Level31
209.244.0.3 209.244.0.4

Google2
8.8.8.8 8.8.4.4
Comodo Secure DNS 8.26.56.26 8.20.247.20

OpenDNS Home3
208.67.222.222 208.67.220.220
DNS Advantage 156.154.70.1 156.154.71.1

Norton ConnectSafe4
199.85.126.10 199.85.127.10

GreenTeamDNS5
81.218.119.11 209.88.198.133

SafeDNS6
195.46.39.39 195.46.39.40

OpenNIC7
216.87.84.211 23.90.4.6

Public-Root8
199.5.157.131 208.71.35.137
SmartViper 208.76.50.50
208.76.51.51
Dyn 216.146.35.35 216.146.36.36

censurfridns.dk9
89.233.43.71 89.104.194.142

Hurricane Electric10
74.82.42.42

puntCAT11
109.69.8.51
Note: Primary DNS servers are sometimes called preferred DNS servers and secondary DNS servers are sometimes called alternate DNS servers. Primary and secondary DNS servers can be "mixed and matched" to provide another layer of redundancy.