Thursday, 22 November 2012

Is Google DNS a Myth?

Google public DNS resolving services on IP addresses and was sold as being a faster solution for users, since caching could occur on a massive scale, but is it just a statistics gathering exercise for Google?

Using NameBench (, and running the test, it looks as if Google DNS is actually slower than local services, and popular global ones:

Mean Response Duration

Mean Duration Graph

Fastest Individual Response Duration

Fastest Response Graph

Response Distribution Chart (First 200ms)

Response Distribution Graph (first 200ms)

Response Distribution Chart (Full)

Response Distribution Graph (full)

DNS Speed testing.

DNS Speed testing.

I've often used ZoneCheck to test if DNS is set up correctly, but it doesn't give an indication of performance,
for that, I'd recommend - Check for "A" record response, where you should aim to get a response time of 50ms or less.

Here is a speed check of this blog, which is hosted by Google.

Min. Time(ms)32333233
Max. Time(ms)3830383131313139
Avg. Time(ms)1715171516151617 ms ms ms ms ms ms ms ms ms ms ms
Min. Time: 2 ms  Max. Time: 101 ms  Avg. Time: 57 ms

TLD Servers ms ms ms ms ms ms ms ms ms ms ms
Min. Time: 2 ms  Max. Time: 101 ms  Avg. Time: 58 ms

Root Servers (H3)5 ms ( ms ()231 ms ( ms ( ms ( ms (M-CDG-1)85 ms (s1.bnx)92 ms ( ms ( ms (b8)65 ms (jluepe1-elstk2)139 ms ( ms
Min. Time: 2 ms  Max. Time: 231 ms  Avg. Time: 84 ms

Monday, 28 May 2012

.VE Domains down

As of 3 PM GMT, all Venezuelan domains (.ve) appear to have gone down. It does appear that the sole nameserver responsible for is unresponsive:

nslookup -q=ns
Server:  my.router

        primary name server =
        responsible mail addr =
        serial  = 2012052809
        refresh = 900 (15 mins)
        retry   = 300 (5 mins)
        expire  = 1296000 (15 days)
        default TTL = 3600 (1 hour)

Ping request could not find host

Saturday, 28 April 2012

Manage DNS from your iPhone or iPad

Manage DNS from your iPhone, All the features of in one app:

Wednesday, 25 April 2012

Manage DNS from your Nokia phone

If you have a Nokia phone, then we've just developed a new App for the Nokia OVI store that allows you manage the DNS settings for your domain.

Here is the Nokia OVI store Link: