IP Address, VPN & Network Security Blog

Free guides on IP addresses, VPNs, DNS, hosting, CGNAT, WiFi, and online privacy - 99 articles

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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.

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

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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 "VPN" (28)

iTopVPN Review (2026): Free Tier, Pricing, and Real-World Fit

iTopVPN review for 2026 covering free-plan limits, low promo pricing, split tunneling, privacy claims, and what to verify before you pay.

9 min read·Updated Apr 21, 2026·826 views

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Mullvad VPN Review (2026): Maximum Privacy, Minimum Data

Mullvad VPN review for 2026 covering numbered accounts, cash payments, WireGuard, DAITA, and who this privacy-first VPN actually fits.

9 min read·Updated Aug 26, 2026·151 views

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PrivateVPN Review (2026): Simplicity and Streaming

PrivateVPN review for 2026 covering ease of use, privacy basics, network tradeoffs, pricing, and who should consider it.

8 min read·Updated Apr 21, 2026·324 views

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Proton VPN Free Plan (2026): Limits Before You Install

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.

9 min read·Updated Aug 26, 2026·783 views

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PureVPN Review (2026): Features, Value, and Who It Fits

Practical PureVPN review for 2026 with feature highlights, tradeoffs, and a technical checklist to validate real-world setup.

9 min read·Updated Aug 26, 2026·88 views

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Urban VPN Review (2026): Extension, Chrome, Reddit Feedback, and Safety Checks

Urban VPN review for 2026 with practical checks for Urban VPN extension, Urban VPN Chrome extension behavior, and Reddit-driven concerns.

8 min read·Updated Apr 21, 2026·177 views

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What Is a WAN? Wide Area Networks Explained

Learn what a wide area network is, how WANs connect LANs across distances, WAN types (leased line, MPLS, VPN, SD-WAN), and how WAN compares to LAN and MAN.

10 min read·Updated Sep 6, 2026·200 views

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