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Free IPv6 checker

What Is My IPv6 Address?

Find out if you have an IPv6 address, what it is, and whether your VPN protects it.

Your IPv6 address

We test a connection that only speaks IPv6, so a result here is real.

What we test, what we do not, and what we store

Full method →

We test

  • Whether your connection has a public IPv6 address and what it is
  • The network that address belongs to

We do not test

  • Whether your VPN covers IPv6 (use the DNS and WebRTC tests, and the IPv6 leak guide)
  • Whether IPv6 is enabled on every device in your home

What we store

  • Nothing is written to a log or database
  • Short-lived in-memory request counters per network to block abuse
  • Anonymous usage counts only: which tool was completed and a coarse result category, never what you typed, your IP address or your results. Nothing is sent if your browser signals Global Privacy Control or Do Not Track.

Third parties that see data: ipify (api6.ipify.org) is called by your browser and sees your IPv6 address, if you have one. Registries receive the address for the registry lookup and see our server.

Do I have IPv6?

IPv6 is the newer version of the internet address system, created because the 4.3 billion IPv4 addresses ran out. An IPv6 address is longer, for example 2001:db8:85a3::8a2e:370:7334, and there are enough of them to give every device its own. Whether you have one depends on your provider and router. Many mobile networks and large fibre providers support it; plenty of older broadband plans do not. This page asks a server that only answers over IPv6, so if an address appears, your connection really can use it.

What an IPv6 address looks like

An IPv6 address has eight groups of four hexadecimal digits separated by colons. Leading zeros can be dropped and one run of empty groups can be replaced by a double colon, so 2001:0db8:0000:0000:0000:0000:0000:0001 is written 2001:db8::1. The first half, the prefix, identifies your network; the second half identifies the device.

IPv6 and privacy

Because IPv6 gives each device its own address, it avoids sharing one address between many devices behind NAT. To limit tracking, modern systems use privacy extensions, which rotate the device part of the address regularly. Your network prefix still identifies your connection, so IPv6 does not make you more anonymous, only differently identifiable.

IPv6 leaks and VPNs

A common failure is a VPN that only handles IPv4. If your network also has IPv6, your browser may use IPv6 for some connections, which then bypass the VPN and expose your real address. That is an IPv6 leak. To test it, connect to your VPN and refresh this page: if it shows an IPv6 address that belongs to your provider, your VPN is not covering IPv6. Fix it by enabling the VPN's IPv6 protection, or by disabling IPv6 in your network adapter settings.

IPv4 or IPv6: which one do websites see?

If a site supports both, your device prefers IPv6. So the address a website records can be either one. Read IPv4 vs IPv6 for how they differ and why both are still in use.

How to turn IPv6 on or off

If you want IPv6, check your router's settings first: many have an IPv6 option that is off by default or needs your provider's details, and some providers enable it on request. If you want to turn it off because a VPN does not cover it, do it on the device: on Windows, untick Internet Protocol Version 6 in the adapter properties; on macOS, set the interface's IPv6 option to Link-local only. Re-run this page afterwards, and the result should say no IPv6 address was detected.

Last reviewed 2026-10-28. Found a mistake? Report a correction (how we handle them).

Fix it and learn more

IPv4 vs IPv6IPv4 vs IPv6 explained: address formats, why we need IPv6, how dual stack works and why a VPN that ignores IPv6 can reveal your real location.What Is an IPv6 Leak, and How Do You Fix It?An IPv6 leak exposes your real address even while a VPN shows connected. Learn how it happens, how to test for it and three ways to fix it.

Also check your…

What Is My Public IP?Your public IP address, and how it differs from your private one.Am I Using a VPN?Check whether sites see you as a VPN, proxy or data-centre connection.DNS Leak TestSee which DNS servers answer your lookups, and whether your VPN leaks them.IP LookupLook up the location, owner and registry record of any IP address or domain.

Frequently asked questions

Why does it say no IPv6 address detected?

Your provider or router may not offer IPv6, which is common. A browser extension that blocks requests can also hide it. This is not a fault in most cases.

Is IPv6 less private than IPv4?

Not inherently. IPv6 avoids shared addresses but uses temporary privacy addresses to reduce tracking. The practical privacy risk is a VPN that fails to cover it.

Should I disable IPv6?

Only if your VPN does not support it and you cannot enable its IPv6 protection. Otherwise leave it on, as some services work better over IPv6.

Can two devices have the same IPv6 address?

On the public internet, no. Each address is globally unique, unlike private IPv4 addresses that repeat across homes.