What is a public IP address
The public IP address is the "house number" with which your connection presents itself on the Internet. It is assigned by your provider (TIM, Vodafone, Fastweb, Iliad, WindTre…) and every site you visit uses it to know whom to reply to. All the devices connected to the same home router — PC, phone, TV — go out on the Internet with the same public IP.
Public IP and local IP: what is the difference?
The local IP (usually 192.168.x.x or 10.x.x.x) identifies the device only inside your home or office network, and is not visible from the Internet. To see it:
- Linux:
ip a - Windows:
ipconfigfrom the Command Prompt - macOS: System Settings → Network
- Smartphone: Settings → Wi-Fi → network details
Why does my IP change?
Almost all home and mobile plans use a dynamic IP: it can change when you restart the modem or after a certain period. Many operators, especially on mobile and FWA networks, also use CGNAT: the same public IP is shared among several customers. If the IP shown here is different from the one you see on your router's page, you are almost certainly behind CGNAT. A static IP is usually requested from the provider, often for a fee.
IPv4 and IPv6
IPv4 is the classic four-number format (e.g. 93.184.216.34); the available addresses ran out years ago. IPv6 is the new, much longer format (e.g. 2001:db8::1), with practically unlimited addresses. Many Italian connections today have both: this page shows both of them.
What can a site learn from my IP?
From the IP alone a site can work out the provider and an approximate location (usually the city or the province, sometimes off by tens of kilometres), not your home address or your name. However, the IP makes it possible to link together your visits to different sites, and it is one of the pieces of data used to profile you. Only the provider knows which subscription an IP corresponds to at a given moment.
How to hide my IP
- VPN: sites see the IP of the VPN server. Choose a serious one, with no logs: a free VPN often pays its costs by selling your data.
- Tor Browser: the traffic goes through three nodes; sites only see the IP of the exit node.
- iCloud Private Relay (Apple) hides the IP only in Safari.
After turning on a VPN, reload this page: if the IP and the location change, it works.
Does this page track me?
No: no ads, no third-party trackers, no account. Your IP is shown to you and is not saved by this tool. To find out the other address too (IPv4 or IPv6) the page queries icanhazip.com, a service run by Cloudflare. More details in the privacy policy.