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 July 2025

2 articles

Guides31 July 20253 min read

Understand the fundamental differences between MAC addresses and IP addresses, how they work together, and why your network needs both.

Guides27 July 20254 min read

Why multiple homes share the same public IP address, how to detect if your ISP uses CGNAT, and how it affects gaming and hosting.

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