September 19, 1990, 30 years ago, the USSR came to the Internet - a top-level domain SU was registered for use in the USSR.
.su was assigned as the country code top-level domain (ccTLD) for the Soviet Union (USSR) on 19 September 1990.Even though the Soviet Union itself was dissolved a mere 15 months later, the .su top-level domain remains in use today with over 100,000 .su domains as of July 2020. It is administered by the Russian Institute for Public Networks (RIPN, or RosNIIROS in Russian transcription).