Free tool
What's my IP address?
This is the public IP address websites and servers see when you connect from this device - the one to give an IT admin or put in an allow-list.
Your public IP address
Good to know
It's the address of your internet connection, not of this one device: everything at home or in the office usually shares it. Mobile networks and some providers change it now and then, and a VPN replaces it with the VPN's.
It's also the address the open port checker tests when you want to know whether a forwarded port is reachable from the internet. To see how a remote session would feel on this connection, the speed test for remote desktop measures your latency and download speed.
We show it and that's all: it isn't stored or used for anything else.