Dot com, the adress
of the inventors of the internet
is used all around the World.
Every Tourists immediately understand it.
National internet domains
like dot .af .by .cz .de .eu .fi ....
are known by locals
but they are less comprehensive for international travelers.
New generic Tlds exisits in a uncountable versions
.academy .biz .co .direct .deal .expert .food .gift .holiday
.info .travel .xyz or .zip ... On Wikipedia you have all variations of Internet top level domains.
Only websites
that never managed to get a dot com use them