CheckIP's IP address guides explain how your connection works and how to fix it when something breaks. You'll find plain-English answers on public and private IPs, IPv4 vs IPv6, finding your IP on any device, ports, DNS and router settings. Each guide is written and tested by the team that builds our tools, so the steps match what you see on screen. New to the topic? Start with what an IP address is or how to find your IP address.
