df.gs
df.co
df.io
df.us
df.de
df.nz
df.at
df.be
df.cl
df.se
df.si
df.ею
df.ad
df.ua
df.рф
df.co.us

df.si

Extension: .si

.si is the country-code TLD for Slovenia.

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