IPv4
IPv4 uses 32-bit addresses and remains widely used across the Internet.
Find out whether your current Internet connection can reach IPv4, IPv6 or both, and view the detected public addresses.
IPv6 is the newer Internet Protocol designed to provide a much larger address space.
IPv4 uses 32-bit addresses and remains widely used across the Internet.
IPv6 uses 128-bit addresses and provides a vastly larger address space.
A dual-stack connection can use both IPv4 and IPv6 networking.
Having an IPv6 address can indicate that IPv6 connectivity is available from your network.
This page checks public endpoints to determine whether IPv4 and IPv6 connectivity are reachable.
IP addresses are network identifiers. Avoid sharing sensitive network information unnecessarily.
Common questions about IPv4 and IPv6.
IPv6 is the sixth version of the Internet Protocol. It uses 128-bit addresses and was designed to provide a much larger address space than IPv4.
Run the IPv6 Checker. If an IPv6 address is detected and the IPv6 endpoint responds successfully, your current connection has IPv6 connectivity to that endpoint.
IPv4 uses 32-bit addresses, while IPv6 uses 128-bit addresses. IPv6 provides a much larger pool of network addresses.
Yes. Many networks use dual-stack networking, allowing devices to communicate using both IPv4 and IPv6.
IPv6 availability can depend on your ISP, router, operating system, local network configuration and the services you are connecting to.
No. A device or network can support both IPv4 and IPv6. The protocol used for a particular connection can depend on network configuration and destination support.
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