What this tool can and cannot do
The check uses ipify's IPv6-only endpoint. A result of "not detected" usually means no IPv6, but strict firewalls or blockers can produce the same result.
Data sources: ipify (api6.ipify.org)
Understanding the results
IPv6 supported: your connection can reach IPv6-only websites. This is good for future compatibility and can avoid some shared-address (CGNAT) problems.
IPv6 not detected: everything still works over IPv4 today. Your router or ISP may offer IPv6 as a setting.
Preferred protocol shows which address our own server saw. Modern browsers prefer IPv6 when it works well.
Troubleshooting
- Check your router's settings for an IPv6 option (often called "IPv6", "DHCPv6" or "Native").
- Ask your ISP whether they provide IPv6 on your plan.
- If IPv6 is detected but websites are slow, try restarting your router; broken IPv6 can cause delays before falling back to IPv4.
Frequently asked questions
Do I need IPv6?
Not yet for most people: almost every website is still reachable over IPv4. IPv6 support is increasingly common and helpful, especially for gaming, hosting and mobile networks.
Is IPv6 less private?
Modern operating systems use temporary IPv6 "privacy addresses" that change regularly, so IPv6 is not inherently less private than IPv4.