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.

iTopVPN review for 2026 covering free-plan limits, low promo pricing, split tunneling, privacy claims, and what to verify before you pay.
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Mullvad VPN review for 2026 covering numbered accounts, cash payments, WireGuard, DAITA, and who this privacy-first VPN actually fits.
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Private Internet Access review for 2026 covering open-source apps, MACE, split tunneling, pricing, and whether PIA still fits power users.
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PrivateVPN review for 2026 covering ease of use, privacy basics, network tradeoffs, pricing, and who should consider it.
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Proton VPN Free has unlimited data and servers in 10 countries, but only one device and no P2P, streaming servers or Secure Core. See every limit.
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Practical PureVPN review for 2026 with feature highlights, tradeoffs, and a technical checklist to validate real-world setup.
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Detailed Surfshark review for 2026 covering unlimited-device value, feature set, performance checks, and who should choose it.
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TunnelBear 5th annual Cure53 audit took 47 days; the 6th took 42 days. Full 2026 review of safety, speed, free tier, and who TunnelBear is right for.
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Urban VPN review for 2026 with practical checks for Urban VPN extension, Urban VPN Chrome extension behavior, and Reddit-driven concerns.
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