Tag Archives: open source

Namebench – a tool for speeding up the DNS part of your browsing experiences

All of the free tools so far have focused on measuring and optimizing the Web and Mobile user experiences – availability and performance – your sites are delivering to desktop and mobile visitors, until now. Let’s take a break from that and do something for ourselves.

Namebench is an open source DNS benchmark utility. It’s a tool for selecting the DNS servers that will give the best performance for your location. DNS is that magic piece of the internet infrastructure that let’s us humans remember Yahoo.com rather than the IP addresses (kinda like phone #s). It’s like the Yellow Pages for all of the addresses on the internet.  And DNS plays a role in evaluating which servers every resource on a web page should be fetched from.

Using the recommended settings from Namebench can significantly improve the browsing experience. A faster Web is a happier Web! If you are an administrator then you already understand how this could make for a better general experience for everyone in the office if your results look like mine. If you’re just a renegade desktop user, you could run a quick test and adjust your own personal settings.

After installing Namebench, start the application. It should detect good defaults. Mine look like this from an AT&T Uverse connection.

dns_performance_testing_site_screen

I just clicked “start” to begin the test. It did run for several minutes on this old core 2 duo. After running through it’s paces, Namebench estimates that the default DNS settings can be improved by over 70%. Wow! (I’d like to do a little before and after testing using @sitespeedio at some point but I’ll have to re-install it now that I put the new M500 ssd in the old Mac.)

dns_performance_benchmark

Looking deeper into the comparison report we are presented with a stack ranking of each of the DNS servers tested by mean and fastest response.

dns_performance_graphs

A detailed response time distribution is also reported.

response_time_distribution_chart

Now go speed up the Web for you and some co-workers!

Ken