Try out 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 completely free and does not modify your system in any way. This project began as a 20% project at Google.

namebench runs on Mac OS X, Windows, and UNIX, and is available with a graphical user interface as well as a command-line interface.


Step 1. Download NameBench

Step 2. Run NameBench

Step 3. Look at the top right of your HTML log, and in the box where it says "recommended configuration (fastest and nearest)" note the top 2 servers

Step 4. Use the first two DNS

Enjoy :) I gained 15% more speed :P
cool. now i want compression.
I have my own accelerator... except compression - you can get speedup, it is avoiding some issues with TCP latency. I can give a demo accounts for lebgeeks, but setup a bit "geekish" (text config).
In this test, OpenDNS-2 is
41% Faster than your current DNS...

I still can find no difference, do you ?

Anyone care to explain how could that affect the internet speed if the DNS is already fast ?
nice catch !
75% increase ! thank you google public DNS ! :D
In this test, Google Public DNS is
18% Faster

thanks
Any explanation? how are you expecting an improved speed ?
^^ it's not improved bandwidth...
if you need 500ms to resolve google.com on your current DNS while you just need 300ms to resolve it on some other DNS server, then it will take you 200 fewer ms to see the page, from where the increase of speed.
no it should not
The problem with my connection was mostly DNS. Thanks for this, major improvement.
battikh wrote^^ it's not improved bandwidth...
if you need 500ms to resolve google.com on your current DNS while you just need 300ms to resolve it on some other DNS server, then it will take you 200 fewer ms to see the page, from where the increase of speed.
Yeah sure I knew that but I believe it should be a backup solution rather than speedup tweaks.. You see if my dns needs 80ms and the googledns 40ms you get a message telling you there's a 100% improvement which is pointless since anything around 250ms is good.

IMO it's useful sometimes when the DNS fails which is even happening on some DNS servers google advised me to use.

It is still a good tool to find out alternative DNS addresses.
After using namebench, how can i change my DNS to actually get a better speed ?
Is it truly efficient ?
Can i always switch back to default DNS ?
battikh wrote^^ it's not improved bandwidth...
if you need 500ms to resolve google.com on your current DNS while you just need 300ms to resolve it on some other DNS server, then it will take you 200 fewer ms to see the page, from where the increase of speed.
The more disparate servers the web page is contacting, the greater the difference. This is especially true of Microsoft/Google and the other big boy sites where they have balancing servers, analytics, and loads of other sites running right there in your browser. 200ms * 5 = 1 sec. That is delay for some people with high speed internet. Not for me.