DNS. What DNS should I choose?


Slow DNS resolving is one of the major causes of slow browsing. Are  the DNS services provided by the ISPs crappy? Should I choose OpenDNS ? Or what?

Two alernatives crossed my path (well more than 2 but only two matter): 4.2.2.2  owned by Level 3 I believe and 8.8.8.8 the google DNS service.

Google promises us good performance and correct results and people usually believe Google …because its Google. and 4.2.2.2 is one of the easiest to type of a collection of 6 DNS servers at 4.2.2.1 through 4.2.2.6.

So, should I use 4.2.2.2? According to http://www.tummy.com/Community/Articles/famous-dns-server/ we should not because “Google now has established public DNS servers at 8.8.8.8 which you should use. 8.8.4.4 can additionally be used, but 8.8.8.8 is pretty easy. 🙂 “.

But thre painfull truth is that it all depends on where you’re located…

Many users who tested those two said thad 4.2.2.2 is better. even more say that 8.8.8.8 is better. I have tested 4.2.2.2 vs 8.8.8.8 two and for me the Google Public DNS is better. and, even more, Google Public DNS is 66.6% faster than my providers DNS using Firefox and OpenDNS is 54.6% faster that my ISP DNS using Internet Explorer and DialTelecom RO is 121.3% faster using Opera. than my ISP DNS I Gguess this says something about Firefox vs IE too doesn’t it? But this is another topic, let’s not deviate … ;)). How do I know this? Thank to namebench. “It hunts down the fastest DNS servers available for your computer to use. namebench runs a fair and thorough benchmark using your web browser history, tcpdump output, or standardized datasets in order to provide an individualized recommendation. namebench is completly free and does not modify your system in any way.”

using Firefox:

IP Descr. Hostname Avg (ms)
8.8.8.8 Google Public DNS google-public-dns-a.google.com 53.83
80.96.202.245 DialTelecom RO 80.96.202.245 102.46
208.67.220.220 OpenDNS resolver2.opendns.com 108.92
193.230.161.3 Xnet RO xnetdns.xnet.ro 134.26
80.96.202.1 DialTelecom-2 RO b.ns.dialtelecom.ro 135.00
216.146.35.35 DynGuide resolver1.dyndnsinternetguide.com 141.63
156.154.70.1 UltraDNS rdns1.ultradns.net 148.75
193.231.169.2 MediaSat RO thorin.mediasat.ro 153.27
193.226.61.1 euroweb RO tag.euroweb.ro 166.59
193.226.34.68 Ac. Economice Bucuresti RO ns0.ase.ro 211.31

Here are some chats to proove what I have said:

Mean Response Duration

MAin Response Duration

Fastest Individual Response Duration

Fastest Individual Response

Fastest Individual Response

Response Distribution Chart (First 200ms)

Response Distribution Chart (First 200ms)

Response Distribution Chart (First 200ms)

Response Distribution Chart (Full)

Response Distribution Chart (Full)

Response Distribution Chart (Full)

Recommended configuration (fastest + nearest) for me

Primary Server
8.8.8.8
Google Public DNS
Secondary Server my router’s dns my router’s dns
Tertiary Server
80.96.202.245
DialTelecom RO

For Google.com using Internet Explorer:

IP Descr. Hostname Avg (ms)
8.8.8.8 Google Public DNS google-public-dns-a.google.com 40.14
216.146.35.35 DynGuide resolver1.dyndnsinternetguide.com 74.61
193.230.161.3 Xnet RO xnetdns.xnet.ro 81.18
193.230.161.4 Xnet-2 RO xnetdns2.xnet.ro 84.55
208.67.222.222 OpenDNS-2 resolver1.opendns.com 93.35
193.226.61.1 euroweb RO tag.euroweb.ro 103.94
80.96.202.1 DialTelecom-2 RO b.ns.dialtelecom.ro 136.14
156.154.71.1 UltraDNS-2 rdns2.ultradns.net 157.93
80.96.202.245 DialTelecom RO 80.96.202.245 180.55
4.2.2.6 Genuity LC f.resolvers.level3.net 208.00

Fastest Response Duration

Fastest Individual Response Duration

Fastest Individual Response Duration

Mean Individual Response Duration

Mean Response Duration

Mean Response Duration

Response Distribution Chart (First 200ms)

 

 Response Distribution Chart (First 200ms)

Response Distribution Chart (First 200ms)

Response Distribution Chart (Full)

 Hide 1Response Distribution Chart

Hide
1Response Distribution Chart

Recommended configuration (fastest + nearest) for me

Primary Server
208.67.220.220
OpenDNS
Secondary Server my router’s dns my router’s dns
Tertiary Server
193.230.161.4
Xnet-2 RO

Using Opera:

IP Descr. Hostname Avg (ms)
80.96.202.245 DialTelecom RO 80.96.202.245 41.14
193.230.161.4 Xnet-2 RO xnetdns2.xnet.ro 49.60
193.230.161.3 Xnet RO xnetdns.xnet.ro 67.91
208.67.222.222 OpenDNS-2 resolver1.opendns.com 84.69
193.226.61.1 euroweb RO tag.euroweb.ro 85.35
80.96.202.1 DialTelecom-2 RO b.ns.dialtelecom.ro 88.89
156.154.71.1 UltraDNS-2 rdns2.ultradns.net 94.65
89.33.253.226 XandraNet RO ns1.xandranet.ro 101.44
8.8.8.8 Google Public DNS google-public-dns-a.google.com 107.17
216.146.35.35 DynGuide resolver1.dyndnsinternetguide.com 129.77

Fastest Individual Response Duration

Fastest Individual Response Duration

Mean Response Duration

mean Response Duration

Response Distribution Chart (First 200ms)

Response Distribution Chart (First 200ms)

Response Distribution Chart (First 200ms)

Response Distribution Chart (Full)

 Response Distribution Chart (Full)

Response Distribution Chart (Full)

Recommended configuration (fastest + nearest)

Primary Server
8.8.8.8
Google Public DNS
Secondary Server my router’s dns my router’s dns
Tertiary Server
80.96.202.245
DialTelecom RO

Using Google Chrome

IP Descr. Hostname Avg (ms)
193.230.161.3 Xnet RO xnetdns.xnet.ro 44.14
193.231.169.2 MediaSat RO thorin.mediasat.ro 57.18
8.8.8.8 Google Public DNS google-public-dns-a.google.com 64.76
80.96.202.245 DialTelecom RO 80.96.202.245 67.70
216.146.35.35 DynGuide resolver1.dyndnsinternetguide.com 71.92
193.230.161.4 Xnet-2 RO xnetdns2.xnet.ro 89.49
156.154.70.1 UltraDNS rdns1.ultradns.net 90.14
193.226.34.68 Ac. Economice Bucuresti RO ns0.ase.ro 102.83
208.67.220.220 OpenDNS resolver2.opendns.com 111.61
193.226.61.1 euroweb RO tag.euroweb.ro 113.36

Mean Response Duration

Mean Response Duration

Fastest Individual Response Duration

Fastest Individual Response Duration

Response Distribution Chart (First 200ms)

Response Distribution Chart (First 200ms)

Response Distribution Chart (First 200ms)

Response Distribution Chart (Full)

Response Distribution Chart (Full)

Response Distribution Chart (Full)

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~ by chitzibush on 22/07/2012.

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