On Thu, Sep 9, 2010 at 4:49 PM, David Richfield davidrichfield@gmail.com wrote:
I'm probably atypical, but I do a number of edits on my phone via Opera Mini, which goes through a portal in Norway. I guess I've been hurting our numbers ;-]
There is a field in the HTTP headers that proxies can use to indicate the upstream source. Not sure how it was handled.
According to the "Dirty Details" it happens quite frequently that there is a lag between when a block of IP addresses are transferred from an ISP in one country to an ISP in another and when the GeoIP database is updated. http://infodisiac.com/blog/2010/01/wikipedia-page-views-a-global-perspective...
There are many technologies to make the statistics more accurate, but I don't think wikimedia has the personnel to do much more work on it.