This four-letter domain is distinctive and easy to pronounce and spell. It sounds like "ducks", which leads to obvious branding opportunities.
As an abstract name this could almost anything, including a physical product (e.g. cleaning, pharmaceutical) website or app (social, health).
Duxs has only four characters and only one syllable. Single-syllable names are very rare and very valued. Leading companies using one syllable names include Shell, Dell and Path.
This domain was first registered in April 2005. Older domains have an advantage when ranking in search engines.
Duxs.com is a .com domain. Dot com domains are the most sought after top-level-domain in the world, used by famous websites like facebook.com. Once secured, a .com all but guarantees no-one else can outrank you for your own name in the long run.