Understand the basics
Plain-English explainers on IPs, DNS, ASN, CGNAT, VPNs, WiFi, and networking - no jargon assumed.
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.
Plain-English explainers on IPs, DNS, ASN, CGNAT, VPNs, WiFi, and networking - no jargon assumed.
Each article links to the diagnostic tool that proves the point, so you move from reading to real data in one session.
Troubleshooting guides walk through port forwarding, CGNAT, wrong IP location, VPN leaks, and more with step-by-step checks.
Build your own WireGuard VPN on a DigitalOcean droplet for $4/month, with the full setup, the IPv6 and DNS leaks most guides miss, and an honest comparison against a commercial VPN.
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Three WebKit features bypass iCloud Private Relay and expose your real IP and DNS resolvers. How each leak works, how to test your iPhone, and why switching Private Relay off makes it worse.
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From August 3, 2026 Google uses IP addresses to identify devices for ad measurement and personalization in the EEA, UK, and Switzerland. There is no opt-out yet. Here is what actually works.
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Learn what the dark web actually is, how it works, what's really on it, and separate fact from fiction.
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Learn the real techniques hackers use - from phishing to malware to social engineering - and how to protect yourself.
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Comprehensive guide to protecting yourself online with password management, 2FA, safe browsing, and more.
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Clear VPN vs proxy comparison with privacy, speed, and security tradeoffs, plus when each makes sense.
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See how public and private IP addresses differ, which RFC 1918 ranges are private, how NAT connects them, and where to find each address.
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Learn how the Domain Name System translates website names into IP addresses and why it's crucial for internet functionality.
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