This great paring of the words "whisper" and "permit" convey an interesting message: "secrecy". It could be used by many companies. It's memorable and easy to pronounce.
The name "whispermit" has 10 letters and three syllables. Leading companies using three syllable names include Sainsbury's, Nescafé and KFC.
This domain was first registered in April 2013. Older domains have an advantage when ranking in search engines.
Whispermit.com is a dot-com domain. Dot com domains are the most desirable top-level-domain in the world, used by famous websites like google.com. When most people think of a website, they think of a dot-com.