The top-level domains are the main Internet name extensions. The generic domian names represent, as it sounds, names which contain generic terms. Like "domains.new" or "furniture.com".
Many times people make confusions and call the generic domain names as generic. Folowing is the list with all main top level domains, linked to search results pages.
The longest legal domain names contain 63 characters starting with a letter or number. The shortest domains only have 1 (one) alphanumeric character. The character count does not include the domain extension, such as ‘.com’, or the URL prefix ‘http://www.’.
So, what domain name currently holds the record as the longest in the world? Actually, there are plenty of sites that are sharing this title at the moment.
Now let’s go to the shortest:
The shortest known domain name right now was recently acquired by Google, with the purpose of making it easier for Chinese users to find Google’s main site. The domain name is ‘g.cn’. Most single letter domain names are supposed to be reserved by the Internet Assigned Numbers Authority (IANA). However, there are a few cases of this not being so:
http://www.Z.com owned by Nissan
http://ww.Q.comowned by Qwest
http://www.X.com owned by PayPal.
Google was not allowed by IANA to buy g.com, but they got lucky and found a one letter-shorter alternative in ‘g.cn’.
