TraceThatIP guides

Guides & articles

Plain-English guides to IP addresses, DNS, subnets, VPNs and online privacy, plus code examples for finding your IP with cURL, Python and JavaScript.

Published in January 2026

2 articles

Networking28 Jan 20265 min read

A clear comparison of IPv4 and IPv6. Learn the differences in format, capacity, security, and why the internet is transitioning to IPv6.

Networking9 Jan 20266 min read

Understand the difference between public and private IP addresses. Learn about NAT, private IP ranges, CGNAT, and how to check which type you have.

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