In message <[email protected]>, Lee Maguire <[email protected]> writes
>Given it’s a free site, i.e. no billing records, I’m wondering how they’re >obtaining IP addresses at the village level. Public lookups of IP addresses >won’t get information at this resolution - and won’t be consistent at a >village >level, so presumably they’re using cookie tracking. Some of the GeoIP databases work by collecting data from legitimate sites which have real signups ... and then they assume that the IP address will remain allocated to people in that general geographical region, at least for some time to come .... viz: when you order online from a bookseller, a supermarket etc you give your exact address and provide them with your exact IP address. Some data crunching (to weed out people who use their work machine to do the weekly shop) and you get a pretty good database The IP addresses may also be downstream from a router with a very clear geographic designation in its name (discoverable from traceroute and reverse DNS lookup). >Visiting the site, Ghostery lists DoublePimp, TrafficJunky, Google Analytics >as >trackers. > >(Other explanation, of course, is that the attribution of location is >hand-wavy >nonsense and just a but of PR “fun”.) IP addresses though notionally dynamic and notionally available to be allocated anywhere in the UK may, depending on the ISP, only get used by people in a very localised area (and often may be almost static for many weeks on end) -- but what the explanation is here ?? You'd need to ask -- richard Richard Clayton They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. Benjamin Franklin
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