Two different DNS benchmarking tools report slightly different results:
GRC's
DNS benchmarking tool was running in WINE. It reports that the Opal Telecom (TalkTalk) primary name server (62.24.139.9) provided by the peer during PPP session init, is overall fastest [1]
Whereas
namebench [2] an open source alternative to the GRC tool, reports the benchmarking results in more detail:
According to
namebench, the Opal nameserver (62.24.139.9) has
the fastest individual response duration. [3]
However, on average, it is the ns8.bt.net nameserver (194.72.9.38) that is consistently fastest.
Hanging off that IP address, BT apparently runs
Nomimum Vantio 5.2.0.1,
the carrier-grade DNS caching engine [4]
Following close behind that BT name server is Google's Public DNS-2 server (8.8.4.4).
Although not really much to choose between any of the fastest servers!
cheers, a
EDIT:
namebench reported quite a number of failed responses or timeouts from the Opal primary nameserver, deciding eventually that it was "
probably broken". So maybe the Opal server is actually pretty fast but only while its load isn't heavy, at which point it just ignores requests?
[1]
http://www4.picturepush.com/photo/a/13387112/img/dns...
[2]
http://code.google.com/p/namebench/
[3]
http://www5.picturepush.com/photo/a/13387113/img/dns...
[4]
http://www.nominum.com/products/core-engines/caching...
Edited by deleted (Sun 23-Jun-13 02:25:52)