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What alternate DNS servers can I use ?

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Since many connectivity issues are eventually traced to DNS problems, you can add to, or even replace your ISP's nameservers with other free public ones. Your ISP automatically assigns their default DNS servers when your computer, or router connects to the internet. The problem is, their DNS servers can sometimes be congested, and cause connectivity issues, catching problems, or delays in name resolution.

Below is a list of the better free public DNS servers you can use instead of the ones assigned by your ISP. Just configure your network adapter (or your router) to use the following IPs as your DNS servers:


Level3
209.244.0.3
209.244.0.4
Alternatives include 4.2.2.1, 4.2.2.2, 4.2.2.3, 4.2.2.4, 4.2.2.5, 4.2.2.6.

Google
8.8.8.8
8.8.4.4
IPv6: 2001:4860:4860::8888 and 2001:4860:4860::8844

OpenDNS (25 datacenters worldwide)
208.67.222.222
208.67.220.220

Dyn
216.146.35.35
216.146.36.36

UncensoredDNS
91.239.100.100
89.233.43.71
IPv6: 2001:67c:28a4:: and 2a01:3a0:53:53::

dnsadvantage (Neustar cloud-delivered DNS)
156.154.70.1
156.154.71.1

Verisign
64.6.64.6
64.6.65.6
IPv6: 2620:74:1b::1:1 and 2620:74:1c::2:2

Comodo Secure DNS
8.26.56.26
8.20.247.20

Norton ConnectSafe
199.85.126.10
199.85.127.10

Some of the free DNS services above may filter DNS results to keep you "safe" from malicious sites, phishing, even scam/adult content and may use aggregate data collected from you (Google, OpenDNS, Norton ConnectSafe) while others will not alter content and most likely not log your queries (Level3, Comodo, Verisign, UncensoredDNS).


There are other alternatives to the US government DNS root zone, which cover some new TLD listings that many nameservers don't yet include. Check here for more information: Alternative DNS root.

Notes:
It is a good idea to choose a DNS server that is geographically close to you, or ones with global presence.
You can choose to replace both, only one, or add to your ISP's DNS servers. Under Windows, the "Advanced -> DNS" tab allows to specify more than two DNS servers, and the order of DNS servers used for resolution.


  User Reviews/Comments:
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by OpenDNS - 2007-10-09 20:27
You may also use the OpenDNS nameservers at

208.67.222.222
208.67.220.220

John Roberts
OpenDNS
by Joelee - 2008-05-04 01:45
220.233.167.31 = Public Aussie DNS Server

http://www.aom-net.com/images/dns.jpg
by freakazoo - 2010-07-14 22:54
opennic (opennicproject.org) has public dns servers, too:

AU,QLD 58.6.115.42
AU,QLD 202.83.95.227
AU,VIC 119.31.230.42
DE,NRW 217.79.186.148
NZ 27.110.120.30
UK,TS 89.16.173.11
US,CO 216.87.84.211
US,CO 2001:470:8388:10:0:100:53:20
US,NJ 69.164.208.50
US,NJ 69.164.211.225
US,NY 64.0.55.201
US,IN 66.244.95.20
US,IN 2001:470:1f10:c6::2
US,TX 72.14.189.120
US,TX 2001:470:1f0f:48e::2
US,TX 69.164.196.21
by altdns - 2015-05-19 05:19
Alternate DNS that also blocks ads at the dns level

198.101.242.72
23.253.163.53

http://www.alternate-dns.com/
by anonymous - 2017-06-05 23:13
Don't forget http://www.ORSN.org

Public NS:

ns1.backplanellc.com
ns2.backplanellc.com
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