What is IPv4 vs IPv6?
IPv4 and IPv6 are the two internet addressing schemes. IPv4 uses 32-bit addresses (about 4.3 billion, now exhausted), written like 203.0.113.5. IPv6 uses 128-bit addresses (effectively unlimited), written like 2001:db8::1. Both are in active use, so detection and geolocation must handle each as first-class.
IPv4 scarcity drove workarounds like NAT and CGNAT. IPv6 removes the shortage with a vastly larger space, and major VPNs, Tor, and Apple Private Relay all operate over IPv6.
A detection service that only handles IPv4 will silently miss a growing share of anonymizer traffic.
How IPLogs handles it
IPLogs treats IPv6 as first-class across detection, provider lists, Tor coverage, and the dashboard, alongside IPv4.