sit.re.kr
sit.co
sit.io
sit.us
sit.at
sit.nz
sit.be
sit.cl
sit.se
sit.si
sit.ею
sit.ua
sit.рф
sit.co.us

sit.io

Extension: .io

.io is the country-code TLD for British Indian Ocean Territory.

Learn more about .io at IANA or Wikipedia, or view all top-level domains.