Professional brand name which plays on the word "client".
The name "clieno" has only six characters and three syllables. Successful brands using three syllable names include Mastercard, Sainsbury's and Armani.
This domain was first registered in December 2016. Older domains have an advantage when ranking in search engines.
Clieno.com is a dot com domain. Dot com domains are the most valuable domain extension in the world, famously used by websites like google.com. Once secured, a dot com all but guarantees no-one else can outrank you for your own name in the long run.