Guides

Short explainers that go with our free lookup tools—written to help you understand the result, not just read a number.

Public vs private IP addresses
Learn the difference between public and private IP addresses, why both exist, and which one websites can see.
IPv4 vs IPv6
Clear explanation of IPv4 and IPv6, dual-stack networks, and why a site might show one or both addresses.
Why IP location can be wrong
Understand IP geolocation limits: why city or region can be off, how databases work, and what IP location is not.

Why we publish guides

Lookup tools answer “what is my …?” in a second. Guides answer “what does that mean?” so the site stays useful for learning and troubleshooting, not only for a one-line result.