GeoIP database comparison

Wendy Seltzer wendy at
Thu Apr 29 15:02:26 UTC 2010

Nick Mathewson wrote:
> On Thu, Apr 29, 2010 at 4:58 AM, Karsten Loesing
> <karsten.loesing at> wrote:
>  [...]
>> In summary, I think we should ship Maxmind's free database with Tor, if
>> the license permits it. I'm hoping to get much better usage statistics
>> results for smaller countries like Tunisia from the free Maxmind. Also,
>> Maxmind has more users and is therefore less likely to provide a broken
>> update and not noticing for weeks.
> This license doesn't look too bad to me.  Their software (which we
> wouldn't use, so it doesn't matter) is LGPL; the database appears to
> be under a old-BSD-like license, with the notorious advertising
> clause.  The advertising clause is annoying, but not a show-stopper,
> since we aren't GPL.  (We're already stuck with an advertising clause
> anyway, from OpenSSL's SSLeay license.)
> One of the lawyers should double-check me here, though.


Facts and collections of facts aren't copyrightable in the US. Since Tor
distributes world-wide, it doesn't hurt to put in the attribution clause.


Wendy Seltzer -- wendy at
phone: +1.914.374.0613
Fellow, Silicon Flatirons Center at University of Colorado Law School
Fellow, Berkman Center for Internet & Society at Harvard University

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