I have been hosting my dns with rackspace for years, formerly slicehost but I have been looking into a 3rd part host, as a result of running various speed tests, such as tools.pingdom.com to test the front end. I typically get ~75ms from dallas on the 1st lookup before it caches the dns.
I have been looking at Dyn and they had a speed comparison test. This is delivered by email and here are the results:
AVERAGE RESPONSE TIME FOR ___.com AVERAGE RESPONSE TIME FOR DYN.COM 108 ms 2 ms Your DNS could be performing 5300% better using Dyn Map of your DNS response times TESTING LOCATION ___.com DYN.COM US (Austin, TX) 75 ms 2 ms Europe (London) 2 ms 1 ms Asia (Hong Kong) 145 ms 3 ms Australia (Sydney) 209 ms 1 ms
It seems that the results I am getting from pingdom match the time.
My question is: what tools or methods can I use to run a similar test on my own?
I basically want to try out a couple of different services and test the dns response time. So, current hosting, host a, host b from a couple of different locations, us west/dallas, us east/nyc, europe (uk).
Are there any free or low cost online tools to accomplish this? If not, are there any utilities that I can install on a VM to run my own tests?