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IPv6 Test

Check whether your connection is IPv6-ready, and see your IPv4 and IPv6 addresses side by side.

Beta

IPv6 readiness

Testing…

Comparing how your connection reaches our lookup endpoints.

IPv4

Checking…

IPv6

Checking…

Beta: readiness is inferred in your browser by comparing IPv4-only and dual-stack lookup endpoints. A full dual-stack audit is part of the upcoming Doctor diagnosis.

How this test works

We ask two public lookup endpoints for your address. One only answers over IPv4; the other prefers IPv6 whenever your connection can use it. If the second endpoint comes back with a genuine IPv6 address, your line, router and operating system are all carrying IPv6 — you're dual-stack ready. If both come back as IPv4, your connection is IPv4-only for now.

It's a quick, no-install readiness check that runs entirely in your browser. Nothing is stored, and you can re-test any time after changing a router setting to confirm the result.

How to read your result

  • IPv6 ready — both an IPv4 and a real IPv6 address were detected. Your connection is dual-stack and using the modern standard where services support it.
  • IPv4 only — no IPv6 address came through. Everything still works, but you're missing IPv6's benefits. Check whether your ISP offers it and enable it on your router.
  • Inconclusive — a lookup didn't respond. That's usually a temporary network blip; re-test in a moment.

Frequently asked questions

What is IPv6 and why does it matter?

IPv6 is the current generation of internet addressing, created because the older IPv4 system ran out of addresses. It enables more direct connections, can reduce reliance on address-sharing (CGNAT), and is increasingly the default for big services. Having it working future-proofs your connection.

My connection is IPv4-only — is that a problem?

Not usually. The internet still works fine over IPv4 thanks to address sharing. But IPv6 can mean fewer hops, better performance with some services and smoother peer-to-peer apps. If you want it, your ISP and router both need to support and enable it.

How do I enable IPv6?

First check that your ISP offers it — many do but leave it off by default. Then enable IPv6 in your router's WAN/internet settings and reboot. If your ISP doesn't support it, no router setting will create it.

Why is this test marked beta?

Browser-based IPv6 detection infers readiness by comparing how your connection resolves public lookup endpoints. It's reliable for a yes/no readiness signal, but a full dual-stack audit needs server-side checks we're still building into the Doctor.

IPv6 is one box ticked. Check the rest.

Readiness doesn't tell you how fast or stable your line is. Run a full check-up to measure speed, latency and loss, and get a plain-English plan for anything that's holding you back.

Run a full diagnosis