What Is My IP Address?
Your public IP is the address websites and online services see when you connect.
Free IP Address Lookup & Network Tools
Your public IP is shown above. The 4 tools below cover the rest: IP Lookup for the location, ISP, ASN, and reverse DNS of any other IP; DNS and WHOIS for domain records; and WebRTC for browser IP exposure. No marketing trackers, no account, no extra noise.
IP Address Lookup
Look up location, ISP, ASN, and reverse DNS (PTR) for any public IPv4 or IPv6 address.
IP Address LookupWebRTC Leak Test
Inspect browser ICE candidates for local IP exposure and possible VPN or proxy leaks.
WebRTC Leak TestWHOIS & Registration
Check registrar details, nameservers, and key dates for registered domains.
WHOIS LookupDNS Lookup
Inspect 8 common record types (A, AAAA, MX, TXT, NS, SOA, SRV, and CAA) plus DMARC for any domain.
DNS LookupWhat is an IP Address?
An Internet Protocol (IP) address is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. It serves two main functions: host or network interface identification and location addressing.
Internet Protocol version 4 (IPv4) defines an IP address as a 32-bit number, which allows about 4.3 billion unique values. Because of the growth of the Internet and the depletion of that IPv4 pool, a new version of IP (IPv6), using 128 bits, was standardized in 1998. Use our IP address lookup to check reverse DNS, location, and network details for any IPv4 or IPv6 address.
Reverse DNS Lookup
Reverse DNS lookup maps an IP address to a hostname via a PTR record, a record type defined in RFC 1035 in 1987. It is useful for email deliverability checks, log investigation, and checking forward and reverse DNS consistency. On iply.dev, reverse DNS is part of the IP address lookup: enter a public IP to see PTR hostnames and forward-confirmed reverse DNS alongside location and ISP data.
Public IP vs private IP
Your public IP is the address our server sees for this connection. It can be shared by several devices behind a router or carrier NAT. A VPN or proxy can replace it with an exit server's address. Your private IP identifies a device inside your local network; addresses such as 192.168.1.1 and 10.0.0.1 cannot be looked up as public internet addresses.
IP location is approximate and cannot identify a person or street address. If a VPN is active, compare the public IP above with the VPN's expected exit IP, then run a WebRTC leak test to inspect browser exposure. That test checks WebRTC candidates; it does not certify every aspect of VPN protection.
Private IPv4 uses 3 ranges reserved by IETF RFC 1918: 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16.
Why Check Your IP?
- Check VPN Connection: Compare your public IP with the expected VPN exit IP. Run a WebRTC leak test to check for browser-based IP leaks.
- Troubleshoot Network Issues: Check DNS and reverse DNS lookup data to diagnose configuration problems.
- Developer Configuration: Check DNS records for your infrastructure.
- Domain Research: Run a WHOIS lookup or IP and reverse DNS lookup to investigate domains and IP ownership.