ibeiy.com is a 5 character word. It is a excellent domain length for people to type quickly.
Top Level Domain
ibeiy.com is the best TLD due to approximately 60% of top 300,000 sites uses '.com'. People are more habitually to type .com than other TLD.
ibeiy is neither a dictionary word, nor does it contain any dictionary word. People tend to remember dictionary words faster than not dictionary words. However, dictionary words are not required.