Google Public DNS is a free DNS (Domain Name System) service announced on 3 December 2009[1], as part of Google's effort to make the web faster.[2][3]
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The service is still experimental. It does not use third party DNS management software such as BIND, instead relying on a homegrown implementation, with limited IPv6 support, which conforms to the DNS standards set forth by the IETF.[4]
It is stated that for the purposes of performance and security, only the IP address (deleted after 24 hours), ISP and location information (kept permanently) are stored on the servers[5][6][7].
Google Public DNS provides the following recursive nameserver addresses for public use[8], mapped to the nearest operational server location by anycast routing[9]:
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