IPv4 vs IPv6: What Is the Difference?
Understand IPv4 and IPv6 addresses, why both exist, and how modern IP lookup tools handle each format.
IPv4 basics
IPv4 addresses are the familiar dotted format such as 8.8.8.8. They are widely supported, but the available address space is limited.
Because IPv4 space is scarce, many networks use NAT so multiple devices can share one public IPv4 address.
IPv6 basics
IPv6 addresses use a longer colon-separated format such as 2001:4860:4860::8888. IPv6 was created to provide a much larger address space.
Modern networks increasingly support IPv6, and lookup tools should validate and analyze both IPv4 and IPv6 addresses.
What changes for lookup
For users, the goal is the same: find location, network owner, and risk context. For developers, IPv6 support matters because blocking or validating only IPv4 can miss real traffic.
Crafzo IP Lookup accepts both formats so you can test public resolvers, server addresses, VPN exits, and your own connection.
Frequently Asked Questions
Is IPv6 more private than IPv4?
Not automatically. Privacy depends on network configuration, temporary addresses, and how services collect data.
Should websites support IPv6?
Yes. IPv6 support improves reachability for users on modern networks and carriers.
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