Domain Name Services or DNS is the service thats translate domain name into IP addresses that can be understand by the computers. We as human remember by names and words but computers need IP address to know where to get data to build a website.
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Computers connected to Internet will used DNS setting provided by own Internet providers. This DNS can become congested and slow down your Internet browsing. You can change your DNS setting by using Google Public DNS and OpenDNS.
To use Google Public DNS, you need to change the computer DNS IP to 8.8.8.8 and 8.8.4.4 visit this site for Google Public DNS information.
http://code.google.com/speed/public-dns/docs/intro.html
Another free DNS service is OpenDNS publi DNS that you can change your DNS setting to 208.67.222.222 and 208.67.220.220 more information about OpenDNS
For website webmasters or domain owner, you can use Cloudflare.com as your DNS hoster. Its free and you can take advantage of Cloudflare CDN. Visit http://www.cloudflare.com/ to register.
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