They’ve already released specs for a replacement for HTTP called SPDY. Now it looks as if Google is set for all out Internet takeover by replacing DNS. DNS (Domain Name Service) is used to translate the web friendly named addresses user type in their browser (like www.PaulSpoerry.com) into their machine friendly IP (Internet Protocol) numerical addresses (like 122.222.12.221).

Google Public DNS, announced on Thursday, is still in an experimental phase but will attempt to improve on existing DNS technology with faster, more efficient caching and additional security safeguards against spoofing attacks that try to dupe users into visiting malicious Web sites.

To use Google Public DNS users will have to change network settings so that their Web site requests go to the Google service instead of to their ISP. Google has set up a Web page with detailed instructions on how to do this.

“We believe that a faster DNS infrastructure could significantly improve the browsing experience for all web users. To enhance DNS speed but to also improve security and validity of results, Google Public DNS is trying a few different approaches,” wrote Prem Ramaswami, from Google’s Public DNS Team, in an official blog posting.

This is interesting and I wonder how much better than can do than OpenDNS by rolling out a new DNS infrastructure.