IP Geolocation
Determine location by IP address or domain
IP geolocation identifies country, region, city, ASN (autonomous system), provider, and connection type for any IPv4 or IPv6 address. Data combines multiple registries (MaxMind, ip-api, ARIN). Useful for availability debugging, traffic analysis, proxy/VPN detection. City-level accuracy: 60-80%, carrier-dependent.
Why teams trust us
How it works
Enter IP or domain
Detect geolocation
Get ISP and ASN info
Why check IP Geolocation?
IP geolocation identifies the location of a server, user, or traffic source. Essential for CDN configuration, GeoIP rules, and security anomaly analysis.
Accurate Geolocation
Country, region, city, postal code, and timezone by IP.
ASN / ISP Data
Provider, autonomous system name, and network range.
Proxy Detector
VPN, proxy, Tor, and hosting flags — protection against fraud and bots.
Search History
Save checks and compare IP geolocation across multiple lookups.
Who uses this
DevOps
server IP check
Security
threat origin ID
SEO
CDN node check
Developers
geo-block debugging
Common Mistakes
Best Practices
Get more with a free account
IP check history, API access and geolocation change monitoring.
Sign up freeWhat is IP Geolocation
IP geolocation determines the physical location of a device by its IP address. Our tool uses a local MaxMind GeoLite2 database updated weekly, providing high accuracy for country, region, city, ISP, and autonomous system (AS) detection. You can enter either an IP address or a domain name — the system automatically resolves the IP via DNS.
The tool shows country, region, city, postal code, ISP name, organization, and autonomous system (AS) information. It also performs reverse DNS lookup (PTR record) to find the hostname associated with the IP address. You can enter either an IP address or a domain name — the system resolves it automatically.
Common use cases: identifying visitor locations for geo-targeting, checking VPN/proxy detection, verifying CDN node locations, and investigating suspicious traffic sources. For domain-related lookups, combine with WHOIS and DNS lookup. Our database is updated weekly from MaxMind GeoLite2.
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Frequently Asked Questions
How accurate is IP geolocation?
Country accuracy is 95-99%. City is determined with 50-80% accuracy and may deviate by tens of kilometers. An exact address cannot be determined by IP — only an approximate area.
What is an AS (Autonomous System)?
An AS is a group of IP networks under single management (usually an ISP or large organization). Each AS has a unique number (ASN). AS information helps identify the hosting provider and network infrastructure.
What is Reverse DNS?
Reverse DNS (PTR record) maps an IP address back to a domain name. Used to verify mail server legitimacy, host identification, and diagnostics. Not all IPs have PTR records.
Can you determine an exact address from an IP?
No, IP geolocation cannot determine an exact physical address. It shows an approximate city or area. For precise location, GPS or Wi-Fi positioning data is needed.
What is the difference between IPv4 and IPv6?
IPv4 uses 32-bit addresses (4.3 billion addresses, exhausted). IPv6 uses 128-bit addresses (virtually unlimited). IPv6 also improves routing and security. The transition is happening gradually.
How to detect if an IP uses VPN or proxy?
VPN/proxy indicators: IP belongs to a data center (not ISP), open proxy ports (1080, 8080), timezone and geolocation mismatch, multiple users on the same IP. Specialized databases flag such IPs.
Related guides
Longer-form reading on this topic from the knowledge base.
Catch IP changes fast
Monitor with alerts on IP / geolocation / ASN change — detect hosting switches or DNS tampering.