Show HN: JavaScript IP Country lookup in under 500KiB

It uses filesystem to read the lookup table, so it's server side. But looks easily adaptable to client.

It's using IP2Location Lite (it's the only offering we found that had a lax enough license while still being accurate). They have an accuracy report here that measures it at 99%+: https://www.ip2location.com/data-accuracy

There's also this third party report which measures 80% overall accuracy, but likely higher practical accuracy (eg accuracy in the US/Europe is much higher than 80% and most of your customers might be there): https://www.cl.cam.ac.uk/~nz247/publications/JSAC2011-Geoloc...