Understand your connection
IP address guides and troubleshooting.
Understand the address a website sees, interpret connection tests and collect useful details for support.
What is an IP address? Public vs private
Compare your device address, router WAN address and the address a website sees.
IPv4 vs IPv6
Address examples, dual-stack connections and what a successful test proves.
Why is my IP location wrong?
Wrong city or country, accuracy circles and how to request a data correction.
IPv6 no internet access: what to check
Work through a failed IPv6 test without changing settings at random.
What is CGNAT?
Check your router's WAN address, understand shared ranges and ask about port forwarding.
Why does my IP address change?
Separate public and local changes, compare static and dynamic addresses, and record a useful before-and-after.
How to find your IP address on Mac
Find Wi-Fi or Ethernet details in System Settings and compare them with your public address.
IPv6 subnet calculator and examples
Calculate CIDR ranges and exact address counts, or divide a prefix into smaller subnets.