ICANN Acronyms and Terms
Type in the acronym or term you are looking for in the Search bar below.
In addition to English, translated versions of acronyms and terms are also available in Arabic, Chinese, French, Russian, and Spanish. Links for each language are located in the top right of the page.
Click the first letter of the term you are looking for to search alphabetically.
Do you have feedback on the definitions or the terms? Send us an email to: acronymsandterms@icann.org.
T
Trusted Community Representative(TCR)
A trusted member of the Domain Name System’s technical and operational communities who has been selected to maintain custody of materials required for the successful operation of the root zone key signing key (KSK). By design, access to the KSK is spread across many individuals who must come together to operate the key. The TCRs play an essential role in securing the KSK and maintaining trust in the Domain Name System Security Extensions mechanism.