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ICANN Acronyms and Terms

ICANN has hundreds of acronyms and terms, which can be confusing. We created this multilingual tool to help explain what these terms mean and facilitate your work within the ICANN community. Search for terms by name or acronym using the search bar, or search by letter. All acronyms and terms are available in Arabic, Chinese, French, Russian, and Spanish.


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  • zone signing keyZSK

    In the root zone, the cryptographic public and private key pair that the Root Zone ZSK Operator uses to digitally sign the content of the root zone. To reduce the risk of an attacker compromising the ZSK, a new ZSK is generated every three months.

    Note: The managers of zones elsewhere in the Domain Name System may have their own zone signing keys to digitally sign the content of the zones they manage.