Google and Neustar UltraDNS have proposed a extension to try to build some geographic awareness into the Domain Name System.
The proposed extension, called Client IP information in DNS requests, would send along the first three quarters of a user’s IP address along with an DNS request. The last quarter would be cut off to preserve some privacy, but the first part should be enough to geographically target the answer in some cases, Google said in a blog post on Wednesday.
http://www.hacking-news.com/2010/02/01/google-aims-to-speed-up-dns-requests/
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