Validate IPv6

Check full or compressed IPv6 notation and identify common address scopes.

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ToolIPv6 Validator
Input
Output
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Preview

How it works

A pattern accepts eight hexadecimal groups, one compressed ::, link-local zone text, or IPv4-embedded forms. Prefixes classify loopback, unspecified, link-local, unique-local, multicast, or global-unicast examples.

  • Compression permits one zero run to become ::.
  • Prefix labels use well-known ranges and do not perform routing.

Worked example

Loopback Address
Validate the IPv6 loopback address
Input
											::1
Output
												Valid IPv6: ::1
Type: Loopback

When to use this

Dual-stack listeners, router ACLs, and service logs validate IPv6 literals.

Edge cases

  • Two separate :: compressions are invalid.
  • fe80::1%eth0 includes a local zone identifier and is accepted.
  • IPv4-mapped forms can end in dotted-decimal bytes.

References