IPv6
What Is IPv6?
IPv6 solves IPv4's core scarcity problem with a vastly larger address space and hexadecimal notation — designed to let every device have its own globally routable address without relying on NAT.
IPv6
IPv6 guides covering addresses, dual stack, VPN leaks, privacy addresses, geolocation, DNS, and security.
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15 articlesLatest IPv6 Guides
IPv6
IPv4 vs IPv6: What Changes for an Internet User
IPv4 and IPv6 aren't a straight upgrade path you switch over one day — most connections run both simultaneously, and that overlap is exactly where privacy tools most often trip up.
IPv6
How to Read an IPv6 Address
Reading an IPv6 address means understanding hextets, zero compression, prefixes and scope — notation that looks intimidating at first but follows a small set of consistent rules.
IPv6
IPv6 Leaks Explained
A VPN can fully protect your IPv4 traffic while your device's native IPv6 address stays reachable directly — because most consumer VPNs were built for IPv4 first.
IPv6
VPN IPv6 Leaks and Split Network Paths
A VPN's IPv6 handling generally falls into one of three designs — native tunneling, deliberate blocking, or accidental bypass — and testing directly is the only reliable way to know which one you're actually dealing with.
IPv6
How to Run an IPv6 Leak Test
Testing for an IPv6 leak means forcing separate IPv4-only and IPv6-only checks and comparing them — a normal 'what's my IP' check only shows one protocol at a time.
IPv6
Dual Stack Explained
Dual-stack means a connection runs IPv4 and IPv6 simultaneously, with the operating system choosing between them per-connection — a coexistence strategy, not a transitional phase that's about to end.
IPv6
Checking IPv4 and IPv6 Consistency
Comparing provider, country and privacy classification across your IPv4 and IPv6 identities — not just checking each one exists — is what actually reveals whether your connection is behaving consistently.
IPv6
Does My ISP Support IPv6?
Checking IPv6 support means working through device, router, WAN prefix, DNS and public reachability in order — the most reliable single check is simply visiting an IPv6-only test endpoint directly.
IPv6
IPv6 Privacy Addresses: Helpful but Not Invisible
IPv6 privacy addresses rotate a device's interface identifier over time — a genuine tracking mitigation, but one that doesn't touch the network prefix, which can still reveal your general network and location.
IPv6
IPv6 Geolocation and Prefix Assignment
IPv6 geolocation relies on prefix-based allocation data, similar in principle to IPv4 but often with more database lag — meaning city-level accuracy can be even less reliable than its IPv4 counterpart.
IPv6
IPv6 Security: New Address Format, Familiar Responsibilities
IPv6 introduces a new address format and some new protocol features, but the underlying security responsibilities — firewall policy, patching, monitoring — remain the same as they've always been.