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tld.wiki

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Under .biz

Find a sub-level extensionPublic eligibility

extension	Domain level	Public registration	Recorded sellers	Compare
.auz.biz	Second-level domain	Unknown	3	View prices

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.biz

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Questions

Which child namespaces are shown under .biz?

The current result includes .auz.biz (second-level; public eligibility unknown).

Are these child suffixes separate from the parent namespace?

Yes. A child suffix has its own domain level and can have its own registration rules, prices, and name availability. A seller record is evidence of an offer, not proof that every applicant is eligible.

How is public registration eligibility shown?

The table distinguishes publicly registrable, restricted, and unknown eligibility. Those labels describe the child namespace, not the parent extension.

Under .biz | tld.wiki