Re: anyone know what powers "google public DNS?"

On Jan 26, 2010, at 2:27 PM, richard lucassen wrote:

> On Tue, 26 Jan 2010 14:13:33 -0500
> Mike Sands <[email protected]> wrote:
> 
>> My understanding is that it is a custom application written by google
>> staff. 
> 
> Of course. Google creates your profile by collecting data through what
> you search. But collecting valuable dns info about what else you're
> doing on the internet can make your profile even more accurate and thus
> more valuable.

They're pretty explicit that they don't do this though.

http://code.google.com/speed/public-dns/privacy.html

"Google Public DNS stores two sets of logs: temporary and permanent. The temporary logs store the full IP address of the machine you're using. We have to do this so that we can spot potentially bad things like DDoS attacks and so we can fix problems, such as particular domains not showing up for specific users.

We delete these temporary logs within 24 to 48 hours.

In the permanent logs, we don't keep personally identifiable information or IP information. We do keep some location information (at the city/metro level) so that we can conduct debugging, analyze abuse phenomena and improve the Google Public DNS prefetching feature. After keeping this data for two weeks, we randomly sample a small subset for permanent storage.

We don't correlate or combine your information from the temporary or permanent logs with any other data that Google might have about your use of other services, such as data from Web Search and data from advertising on the Google content network."