What Is an IP Address?
A practical introduction to public and private addresses, IPv4, IPv6 and approximate location.
Read the guide →Knowledge centre
IP, VPN and Privacy Guides
Practical, reviewed explanations to help you interpret network information, make informed privacy choices and understand the limits of online tools.
What Is a VPN and How Does It Work?
Understand VPN routing, encryption, limitations and leak testing.
Read the guide →How to Change Your IP Address
Compare reconnecting, changing networks, VPNs, proxies and provider options.
Read the guide →How to Hide Your IP Address
Learn what IP masking changes—and what cookies and accounts can still reveal.
Read the guide →What Can Someone Do With Your IP Address?
Separate realistic network risks from common misconceptions.
Read the guide →IPv4 vs IPv6
Compare formats, address capacity, NAT, security and dual-stack connections.
Read the guide →Public vs Private IP Addresses
Understand internet-facing addresses and addresses inside local networks.
Read the guide →Static vs Dynamic IP Addresses
Choose between predictable and provider-assigned addresses for practical needs.
Read the guide →How Accurate Is IP Geolocation?
Interpret country, region and city estimates responsibly.
Read the guide →What Is a WebRTC Leak?
Learn what browser tests measure and how to respond to unwanted exposure.
Read the guide →