.icu, a domain extension, is a generic top-level domain delegated in ICANN's New gTLD Program.
ShortDot SA, based in Luxembourg, manages the TLD and is its registry. The proposed application was accepted and assigned to the Root Zone in May 2015.
The abbreviation ICU means "I See You."
.ICU domain extension ranks #7 among all domain extensions, and #4 among all generic extensions (gTLDs). Currently, there are 6.8 Million registered .icu domain names. Shortdot is the registry of .icu extension.
The oldest (still exists) .icu domain name is nic.icu, and it was registered on 17 February 2015.
The most popular .icu domain name is beeg.icu. Its worldwide rank is 50541.
.ICU domains are most popular in China. United States and Panama are the other countries that have most .icu domain registrations.