What We Do

WhoIsThatIP.com provides free, professional-grade network diagnostic tools that help you understand IP addresses, domains, and network infrastructure. Whether you're debugging connectivity issues, managing networks, or just curious about your internet connection, our tools provide the insights you need.

Our Tools

🌐 IP Address Lookup

Get comprehensive information about any IP address including geographic location, ISP details, network hostname, and timezone information.

🔄 Reverse DNS Lookup

Convert IP addresses back to hostnames with PTR record resolution, forward lookup verification, and IPv4/IPv6 support.

📋 DNS Records Lookup

Complete DNS record analysis including A/AAAA, MX, NS, TXT, CNAME, and SOA records with TTL information.

🛡️ Security & Privacy

Rate-limited, HTTPS-only service with no personal data storage and comprehensive input validation.

Why Choose Us?

✅ Free to use
✅ No registration required
✅ Cached for speed
✅ Secure and private
✅ Multiple lookup types