Every login attempt on your app could be a real user — or a bot running through a residential proxy in another country. If you can't tell the difference, you're leaving the door open to account takeovers, payment fraud, and credential stuffing.
The good news: your users' IP addresses already carry the signals you need. You just need to know how to read them.
The Problem with Legacy IP Databases
Most IP lookup solutions are just databases — static files you download and query locally. MaxMind's GeoIP2, for example, is updated weekly. That means:
VPN and proxy data is always stale. New exit nodes appear hourly. A weekly snapshot misses most of them.
