Notable IP addresses / 2001:4860:4860::8888

2001:4860:4860::8888
Google Public DNS (IPv6)

Public DNS resolver (IPv6)Google LLCAS15169

The IPv6 address of Google Public DNS, the counterpart to 8.8.8.8. Secondary: 2001:4860:4860::8844.

If your connection has IPv6 (check with the What Is My IP page) your device can reach Google DNS over IPv6 using this address. Devices generally prefer IPv6 resolvers when both are configured.

A DNS leak test showing 2001:4860:4860::8888 while your VPN is on means IPv6 DNS is bypassing the tunnel — a common IPv6 leak that the privacy leak test detects.

Related addresses

8.8.8.8
Google Public DNS (primary)
2606:4700:4700::1111
Cloudflare DNS (IPv6)

Frequently asked questions

Do I need IPv6 DNS servers?

Not strictly; DNS over IPv4 resolves AAAA records fine. Configure them if your network is IPv6-enabled so lookups still work when IPv4 is unavailable.