IP geolocation basics

How IP geolocation works, accuracy, ASNs and more.

How IP geolocation works

From IP address to country, city and ASN: the data and methods behind IP geolocation.

IP geolocation accuracy, explained

Why city-level accuracy varies, what affects it, and how to set realistic expectations.

IPv4 vs IPv6 geolocation

How geolocation differs between IPv4 and IPv6, and what it means for your app.

What is an ASN?

Autonomous System Numbers explained, and why they matter for IP intelligence.

IP geolocation vs GPS

When to use IP geolocation, when to use GPS, and how they compare.

How to find the city from an IP address

A practical guide to resolving an IP to a city, with code.

Get new articles by email

IP intelligence, bot detection and geo-marketing. No spam.