4 ms·

Honestly this does not seem to be a very smart thing to do at all. Your ping times is probably just going to reveal on which coast of US you are on (unless you'

by alpb 10y ago

Honestly this does not seem to be a very smart thing to do at all. Your ping times is probably just going to reveal on which coast of US you are on (unless you're speedtest.com or something like that). If you want city-level accuracy, at least in US, just use geo IP lookup: https://geoiptool.com/ https://geoiptool.com/ This finds my city perfectly, unlike the link above (which says I'm somewhere on US West coast).

_ao789 10y ago
The whole point is to not use a geoip database and instead attempt to find your location from numerous server requests. Hence 'concept' as this wouldn't really be feasible for any real world usecase.
cynwoody 10y ago
Geoiptool thinks I'm in Romania. As does Maxmind's free IP location database[1]. However, Google thinks I'm in New Delhi, until I grant permission to upload my actual location. Then it puts the marker right on my rooftop in Massachusetts. I'm actually using a VPN (euro214.vpnbook.com), which, based on the name, should be somewhere in Europe. But who knows? If I disconnect the VPN, Google and Geoiptool both get my town right, and Maxmind is one town over. I'm using Verizon FiOS. As for the geolocator, the ping times range from 172 ms (Frankfurt, Germany) to 524 ms (Singapore). Too large to be of use. With the VPN disconnected, it lucks out with a 12 ms ping to New York, resulting in a yellow circle accurately indicating that I am in the northeast US. Looking at the no-VPN map[2], there are small circles corresponding the antipodes[3] of Singapore (purple) and Bangalore (blue). Without the New York ping, the map would be completely useless. [1]https://dev.maxmind.com/geoip/geoip2/geolite2/ https://dev.maxmind.com/geoip/geoip2/geolite2/ [2]https://i.imgur.com/nKw8u1D.png https://i.imgur.com/nKw8u1D.png [3]http://www.antipodesmap.com/ http://www.antipodesmap.com/
tedmiston 10y ago
How does Geo IP Tool make these predictions? Like, where is the data it's associating my IP with coming from or how are they obtaining it?
- pyvpx 10y ago
  they start with WHOIS data and add what they can from there to improve accuracy. Quite a few residential ISPs register blocks of IP addresses (subnets) to a city, town, neighborhood, etc.

by alpb 10y ago

_ao789 10y ago

The whole point is to not use a geoip database and instead attempt to find your location from numerous server requests. Hence 'concept' as this wouldn't really be feasible for any real world usecase.

cynwoody 10y ago

Geoiptool thinks I'm in Romania. As does Maxmind's free IP location database[1]. However, Google thinks I'm in New Delhi, until I grant permission to upload my actual location. Then it puts the marker right on my rooftop in Massachusetts. I'm actually using a VPN (euro214.vpnbook.com), which, based on the name, should be somewhere in Europe. But who knows? If I disconnect the VPN, Google and Geoiptool both get my town right, and Maxmind is one town over. I'm using Verizon FiOS. As for the geolocator, the ping times range from 172 ms (Frankfurt, Germany) to 524 ms (Singapore). Too large to be of use. With the VPN disconnected, it lucks out with a 12 ms ping to New York, resulting in a yellow circle accurately indicating that I am in the northeast US. Looking at the no-VPN map[2], there are small circles corresponding the antipodes[3] of Singapore (purple) and Bangalore (blue). Without the New York ping, the map would be completely useless. [1]https://dev.maxmind.com/geoip/geoip2/geolite2/ https://dev.maxmind.com/geoip/geoip2/geolite2/ [2]https://i.imgur.com/nKw8u1D.png https://i.imgur.com/nKw8u1D.png [3]http://www.antipodesmap.com/ http://www.antipodesmap.com/

tedmiston 10y ago

How does Geo IP Tool make these predictions? Like, where is the data it's associating my IP with coming from or how are they obtaining it?

pyvpx 10y ago
they start with WHOIS data and add what they can from there to improve accuracy. Quite a few residential ISPs register blocks of IP addresses (subnets) to a city, town, neighborhood, etc.