What is a public IP address?
How addresses are assigned, why every connection needs one, and the difference between public and private ranges.
Guides
Short, honest explanations of how IP addresses and network exposure actually work.
IPv4 vs IPv6, explained
Why two address formats exist, how to tell them apart, and what it means when you see both on the same connection.
What an ASN says about your connection
Autonomous System Numbers identify the network that carries your traffic — often more revealing than the IP itself.
Reverse DNS and PTR records
What a hostname attached to an IP tells you, and why plenty of residential addresses have none at all.
How accurate is IP geolocation?
Why IP-based location is an approximate network location rather than a street address, and where it goes wrong.
Does a VPN hide your IP? How to check
Compare your public IP before and after connecting, understand the limits of that check, and choose a VPN for the protection you need.
Want to see your own details first? Check your IP address.