I've been looking into this for sometime now and wanted everyone's opinion about using DNS's. There are a myriad of chooses out there which can either decrease or increase cached/uncached dns results. But in some cases the differences are tenths of a ms. At times it can be in the hundredths of a ms. Changing your DNS lookup may really depend on how well your default DNS setup is with your ISP. PCMag.com did their own review to see which of the three is faster. You can see their results here. However, keep in mind that their results may not be the same as your results. Now what is a DNS? DNS means Domain Name System. The purpose of DNS is to translate the actual host name (ex: www.hostname.com) into a numerical (binary) identifier (ex: 184.108.40.206). It acts like a switchboard operator who locates and connects your call to the correct designation. The faster the DNS finds and connects your request the faster the page will appears on the screen, the faster your emails are delivered/received and, the less lag you experience playing games online. Google has released their own public DNS to try for yourself. However it's not clear what they will do with your information. What google as you to do is use their IP 220.127.116.11 and then use their DNS of 18.104.22.168 and 22.214.171.124. Now again it's not clear what they will do with your information but some seem not to care and believe that's faster. Others are using OpenDNS. Which is a little bit more involved as you 1st have to sign up, choose a package (either free or paid service) then follow their instructions on how to setup your DNS. The difference between this and the former is that with Google it's free and simple to setup. However, some people believe that OpenDNS is simply better in speed and protection then what Google or your ISP offers. However, some do not and simple don't touch their DNS. So to give people an idea of how well their DNS is there is a simple easy to use tool benchmark program called DNS Benchmark that will (you guessed it) benchmark your current DNS (you can change it to get results from other DNS). From my understanding of this benchmark is that you have to run it a few times to get an idea of which is really better. And, what's better for one person may not be better for someone else. So keep that in mind. Also note there maybe other DNS services out there not mentioned like DynDNS, etc. Ultimately the choice to change your current DNS setup will be up to you.