Free tool
What Is My IP Address?
See your public IP address instantly — and find out whether it's static, dynamic, or hidden behind carrier-grade NAT.
Detecting your IP…
This is the IP your browser's request arrives from. A VPN or proxy will show that service's IP.
FAQ
Common questions about IP addresses
Why does my IP address change?
Most ISPs assign IP addresses dynamically via DHCP. When your router reconnects — after a reboot, power outage, or lease expiry — it may receive a different IP. This is normal, but it breaks services that rely on a fixed IP.
What is the difference between a public and private IP?
A public IP is routable on the internet and assigned directly by your ISP. Private IPs (10.x.x.x, 192.168.x.x, 172.16-31.x.x) are used inside local networks. Your home devices use private IPs and share one public IP through your router (NAT).
Can I get a static IP from my ISP?
Yes, many ISPs offer static (fixed) IPs, usually for a monthly fee or on business plans. If your IP changes infrequently, a DDNS service is a cheaper alternative that automatically tracks your IP.
What is CGNAT and why does it matter?
Carrier-Grade NAT means your ISP places multiple customers behind a single shared public IP. This makes it impossible to run a home server accessible from the internet. You can't port-forward past the ISP's gateway.
Does NovaDNS work with a dynamic IP?
Yes — that's exactly what it's for. Your router or a small client updates NovaDNS whenever your IP changes, keeping your hostname (e.g. home.example.novadns.io) pointed at your current address.
Your IP changes. Your hostname shouldn't.
NovaDNS keeps a stable hostname pointed at your dynamic IP — automatically updated whenever it changes.