Dual-stack exit test — where do IPv4 and IPv6 each go?

A device may have both IPv4 and IPv6. Proxy or VPN coverage for each protocol depends on client, system, and routing configuration, so observing the exits separately helps verify the path.

ip4.ipok.io has only an A record and ip6.ipok.io only an AAAA record. Each endpoint echoes the source address it sees for that connection. Both responses mean both protocols were reachable in this run; failure can mean absence, filtering, timeout, or temporary unreachability.

This test does not use WebRTC. IPOK does not create or persist an application-level v4/v6 pairing record; the hosting network still processes standard metadata required to serve each connection. Interpret the exits against your own expected configuration.