Nice, invented business domain name which could be based on the Italian word "zanzero" (as in 'drinking companion').
The name "zanzeo" has only six characters and only two syllables. Two-syllable names are very rare and extremely desirable. Established brands using two syllable names include Apple, Lego and Disney.
Zanzeo.com is a dot-com domain. Dot com domains are the most sought after domain extension in the world, used by famous websites like twitter.com. When you own a dot-com, it is much easier to rank for your own name in search engines.
This domain was first registered in April 2010. Older domains have an advantage when ranking in search engines.