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2025
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Learn the difference between your public and private IP addresses - and why both exist
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A short guide to why websites sometimes block your IP address - and what you can do about it
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A quick overview of IPv4 vs. IPv6 - what they mean, how they differ, and why it matters
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A quick guide to checking whether your VPN is hiding your real IP address and preventing leaks
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A short list of free VPNs with clear limits and privacy-focused policies - no trials, no tricks