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 just one syllable. Single-syllable names are exceptionally rare and exceptionally sought after. Successful brands using one syllable names include Box, Square and Nike.
This domain was first registered in April 2005. Older domains have an advantage when ranking in search engines.