The website Domain Name Universe has been discontinued. Domain Name information is available on Wikipedia. The following links might be useful:

Wikipedia's country code top-level domains section (.fr, .jp, .eu...)
Wikipedia's generic top-level domains section (.com, .info...)
Old Domain Name Universe Website
CentralNIC (.eu.com, .web.com, .gb.com...)
IDN's (multilingual domain names)
IDN / Punycode converter
IP addresses
ICANN
ICANN Watch
InterNIC
Compare registrars