Internet protocol connectivity

Free IPv6 Detector

Attempt separate IPv4 and IPv6 endpoint requests from your browser and review the addresses actually returned.

  • Browser-origin requests
  • IPv4 and IPv6
  • Endpoint-based evidence

Test Your IPv6 Connectivity

Click the button below to check if your internet connection supports IPv6.

Start here

How to use this tool

Follow these steps to get observations you can interpret and act on.

  1. Choose the connection to test

    Connect to the Wi-Fi, mobile network or VPN you want to check. Use the browser whose route matters to you.

  2. Start the connectivity check

    Let the independent IPv4 and IPv6 requests complete. A probe may time out or be restricted by browser or network policy.

  3. Read the returned addresses

    Compare the observed address families and network information. Repeat after changing VPN or router settings to inspect the effect.

Behind the check

How the IPv6 connectivity detector works

The IPv6 detector requests an IPv4 endpoint and a separate IPv6-only endpoint from your browser. An IPv6 address returned by the IPv6 probe provides evidence that this browser reached that endpoint over IPv6. Failure to obtain a response leaves several possible causes to investigate.

Understanding your results

  • IPv4 addresses use dotted decimal notation. IPv6 addresses use hexadecimal groups and a larger address space.
  • A successful IPv6 probe verifies this particular request path, not every application or destination on your device.
  • No IPv6 response can reflect unsupported connectivity, a blocked or unavailable endpoint, browser policy or a timeout. It does not by itself prove a leak or universal lack of IPv6.
Know the scope

Privacy & important limitations

  • The browser contacts the configured probe endpoints; defaults are ipify’s IPv4 and IPv6 services. They see the source address used for each request.
  • Optional network enrichment uses this site’s geolocation endpoint. The test does not change your device’s IP configuration or VPN settings.
Interpret the evidence

Read each address-family observation separately. A failed endpoint request does not establish its cause or verify VPN leak protection.

Common questions

Frequently asked questions

Does IPv6 bypass my VPN?

That depends on the VPN and routing configuration. Compare the observed IPv6 address with your expected VPN route and use the IP leak test for additional evidence.

Is IPv6 automatically more secure or faster?

Address-family support alone does not establish security or performance. Those depend on the actual network, applications and configuration.