Does anyone know how ipinfo compares to running your own instance of https://freegeoip.net?
The answers on the SO question https://stackoverflow.com/q/409999/325521 that OP refers to (in his blog post)
also has another answer using freegeoip.net => https://stackoverflow.com/a/16589641/325521
From the comments on this answer (not OP's answer linking to his API), it seems like freegeoip is not all that reliable (i.e. it's down a lot).
Funnily enough, 1 of the comments on this answers links to another free service, called "freegeoip2" which seems to work just fine as of right now.