IP Geolocation: from address to location
IP geolocation is the process of determining the geographic location of a device based on its public IP address. It works thanks to databases that map blocks of IP addresses to the geographic locations where they are registered. These databases are compiled by combining information from Regional Internet Registries (RIRs), provider data, and latency and routing surveys. Our IP Geolocation provides: country, region, city, coordinates, timezone, ISP, organization, and ASN for any public IP.
Accuracy varies by level: at the country level it is 95-99%, at the region level 70-90%, at the city level 50-80%. The location shown is not the physical address of the device, but the location of the ISP's POP (Point of Presence) closest to the user. For data center and cloud provider IPs, the location corresponds to the data center region, which is very accurate. For residential connections, accuracy is more variable.
Practical use cases
In web traffic analysis, IP geolocation helps understand where visitors come from, identify anomalous traffic from unexpected regions, and personalize content by region. In security, it allows identifying the origin of attacks and deciding whether to block entire geographic ranges. In debugging, it reveals whether your CDN is serving content from the correct PoP. For a deeper network analysis, combine with ASN Lookup for the provider and Reverse DNS for the hostname.
Limitations and VPNs
IP geolocation has important limitations: it does not work with VPNs and proxies (it shows the location of the intermediary server, not the actual user), it is not accurate at the street address level, and databases may have outdated data for recently reassigned IPs. Services like Tor make geolocation completely useless because traffic exits from nodes in random locations. Use What Is My IP to verify how the world sees your IP and associated location.
To verify whether your VPN is working correctly, check your IP with and without the VPN. If the IP and location change, the VPN is active. If the IP changes but the location is close to your real position, you might have a WebRTC leak revealing your local IP. If nothing changes, the VPN is not connected. Our IP Geolocation is the quickest tool for this check.
An advanced application of geolocation is geofencing: blocking or personalizing access based on the visitor's IP location. This is used for: regulatory compliance (GDPR for EU users), geographic content licensing (streaming), and attack protection (blocking regions known for abuse). However, since VPNs and proxies can bypass geofencing, it should never be the only security measure.