IPv6 is the newer Internet Protocol with a vastly larger address space than IPv4, written as colon-separated hexadecimal groups.

IPv4 still works for most users, but IPv6 improves long-term scalability and is required on some modern networks and mobile carriers.

Can I use IPv4 and IPv6 together?

Yes — dual-stack networks run both protocols side by side. This tool reports whether your connection currently has both.

Why doesn't my ISP provide IPv6?

Some ISPs lag on deployment or disable IPv6 on certain plans. Router firmware and ISP support tickets can help.

Speed depends on routing and ISP — not the version alone. IPv6 can reduce NAT overhead when natively supported.

Dual-stack means your device and network can use IPv4 and IPv6 at the same time, choosing the best path per destination.

Sometimes — fewer NAT layers and modern routing — but DNS, firewalls, and broken v6 paths can also cause issues until configured correctly.

IP Tools

Check whether your network supports IPv6, view your IPv6 address, and verify dual-stack connectivity.