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.
Learn the fundamentals of IP addresses, how they are assigned, and their role in internet communication.
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Surfshark vs NordVPN for 2026. Pricing, unlimited device connections, streaming, audits, and whether the cheaper plan beats NordVPN for your use case.
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Proton VPN has a free tier, streaming, and port forwarding; Mullvad has email-free numbered accounts and flat EUR 5 pricing. See who should pick each.
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Head-to-head NordVPN vs ExpressVPN for 2026: pricing, NordLynx vs Lightway speed, audits, streaming, apps, and which to pick by use case.
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AI VPN detection combines IP reputation, ASN, TLS fingerprints, behavior, and location mismatch to catch VPNs old blocklists miss.
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AI does not see your IP inside the chat model, but vendors log IPs and AI can infer location from photos, text, browsing, and local tools.
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Published IP ranges and ASN patterns for OpenAI, Anthropic, Perplexity, Common Crawl, Meta, and Apple. How to verify AI bots with forward-confirmed reverse DNS.
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Block AI crawlers with robots.txt, user-agent rules at Nginx and Cloudflare, and ASN-level rate limiting. Verify the block with reverse DNS.
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Compare 10 VPNs by price, renewal cost, free-plan limits, privacy, speed and refund terms. Every figure is sourced, with leak checks you can run yourself.
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