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WebRTC candidates
Find public addresses exposed by the browser.
Not run
IPv6 leak test
Your current request arrived over IPv4. Run the active test to try the IPv6-only EasyGeoIP endpoint.
Local tests
Find public addresses exposed by the browser.
Check whether an IPv6 path is available.
DNS leak testing requires controlled DNS infrastructure and is not included.
Why it matters
A device can hold both protocols at once. If the VPN installs only IPv4 routes, an IPv6-capable destination may receive the ISP-issued IPv6 address.
If a VPN does not support IPv6, blocking external IPv6 while connected is usually safer than silently using the ordinary route. Retest after sleep and network changes.
Reference