IP Address, VPN & Network Security Blog

Free guides on IP addresses, VPNs, DNS, hosting, CGNAT, WiFi, and online privacy - 109 articles

How to get the most from this blog

Every article is paired with a live tool so the theory turns into real diagnostics immediately. Troubleshooting a VPN? Read the leak guide first, then run DNS and WebRTC checks. Investigating an unfamiliar IP? Pair the ASN and WHOIS articles with the lookup tools. Start with a concept, finish with a verified result.

Understand the basics

Plain-English explainers on IPs, DNS, ASN, CGNAT, VPNs, WiFi, and networking - no jargon assumed.

Verify with live tools

Each article links to the diagnostic tool that proves the point, so you move from reading to real data in one session.

Fix real problems

Troubleshooting guides walk through port forwarding, CGNAT, wrong IP location, VPN leaks, and more with step-by-step checks.

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Showing results for "IP Address" (25)

What Can Someone Do With Your IP Address? Real Risks and Fixes

Learn what someone can actually do with your IP address, what they usually cannot do, and how to reduce tracking, DDoS, and exposure risk.

9 min readUpdated Oct 24, 2026417 views

IP Checker Alternatives: How to Compare "What Is My IP" Tools

Learn how to compare "what is my IP" tools and when you need DNS leak, WebRTC leak, ASN, and blacklist diagnostics beyond a basic IP checker.

8 min readUpdated Oct 20, 2026162 views

What Is My IP Address on Computer and Router? (Windows/Mac Guide)

Find your computer IP address, understand the internet address of your computer, and learn router IP vs public IP differences.

7 min readUpdated Oct 24, 2026179 views

What Is My ISP? How to Check Your Internet Provider and ASN

Learn how to identify your ISP from an IP address, interpret ASN data, and verify provider ownership with practical checks.

15 min readUpdated Sep 11, 20261,184 views

IP Address Lookup: How It Works & What It Shows

Understand what IP lookup tools show, how they work, and when to use them for security or troubleshooting.

8 min readFebruary 2, 2026172 views

CGNAT IP Range: 100.64.0.0/10 Explained (RFC 6598)

The CGNAT range is 100.64.0.0/10 (RFC 6598). Learn how to confirm CGNAT, why port forwarding fails, and realistic fixes.

13 min readUpdated Aug 20, 20262,058 views

Can Someone Find You From Your IP Address?

What an IP address can reveal, what it usually can't, and how to reduce IP-based tracking risk.

9 min readUpdated Oct 24, 2026287 views

Showing 19-25 of 25 articles