Geocodes emails based on the email domain IP address. This example uses emails of CRAN package maintainers.
Ot geocode the IP adresses I use freegeoip which I set up locally in less than 2 minutes:
- Download binary
- Go to terminal window, change into directory where it is unzipped
- Launch with: ./freegeoip`
- Test in another terminal window with:
curl localhost:8080/json/1.2.3.4
- ..now throw your IPs at it!
A map of all the geocoded hosts: