Actually, it should do that, but the URL I linked to is http://nearish.com/#San_Francisco http://nearish.com/#San_Francisco , which the page automatically route

Actually, it should do that, but the URL I linked to is http://nearish.com/#San_Francisco http://nearish.com/#San_Francisco , which the page automatically routes to San Francisco. Visiting http://nearish.com http://nearish.com should geolocate you via IP. I use the MaxMind geolocation database to do this locally in node.js on the backend using node.js's native extensions. I actually made this into a library that's available here: https://github.com/joevennix/GeoIP-js https://github.com/joevennix/GeoIP-js