Proxies and IPv6
This check shows whether your IPv6 connection appears to pass through a proxy server. It connects over IPv6 only, so it also reveals whether IPv6 traffic takes a different route than your IPv4 traffic.
How proxies handle IPv6
A proxy server forwards your requests and shows websites its own address instead of yours. Many proxies and older VPNs only support IPv4. When your device has working IPv6 and the website supports it too, the browser may prefer IPv6 and skip the proxy entirely.
Testing for IPv6 leaks
Use this page together with the other IPv6 tools while your VPN or proxy is on:
- Check your IPv6 address. It should show “Not detected” or the VPN’s IPv6 address, never your own.
- Check your IPv6 location. It should match the VPN server’s location.
- Check your IPv6 ISP. It should show the VPN’s hosting provider, not your home ISP.
If any of them show your real connection, your IPv6 traffic is leaking past the VPN or proxy.
Translation gateways: NAT64 and 464XLAT
Some mobile carriers run IPv6-only networks and reach IPv4 websites through translation gateways (NAT64 or 464XLAT). These gateways aren’t proxies in the usual sense. They can make your IPv4 and IPv6 results look as though they come from different networks, which is normal on these carriers.