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I came across some sites that have only 2 or even 1 charachter for the domain name like hp.com, u.bb and 9.bb

How come? as we know that when registering a domain name we must provide at least 3 characters.

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migrated from stackoverflow.com Mar 8 '11 at 23:55

This question came from our site for professional and enthusiast programmers.

Depends on registrar. The "owners" of the TLD have flexibility in their rules. (And in [almost] all TLDs all the two letter combinations and perhaps three are ... gone.) – pst Mar 8 '11 at 23:04
Sorry I didn't get the point – MohamedKadri Mar 8 '11 at 23:05

It depends on what the tld requires. For example, even though for .me domains you need 3 letters, many companies are granted an exception for example fb.me, wp.me. They are probably paying for this privilege :-)

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Wikipedia has an article on the topic.

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Single-letter second-level domains are domain names in which the second-level domain consists of only one letter, such as x.com. In 1993, the Internet Assigned Numbers Authority (IANA) explicitly reserved all single-letter and single-digit second-level domain names in the top-level domains com, net, and org, and grandfathered those that had already been assigned. In December 2005, ICANN considered auctioning these domains.


Two letter domains where reserved to prevent confusion with two letter country code TLDs.


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It is theoretically possible but usually all that domains are taken. Special resellers like 1-single-letter-domains.com offer such domains to buy, but the prices are much higher than usual domains. But if you want only a 2-letter domain you can get it much cheaper than 1-letter. 1=$$$$ price, 2=60+ USD. You need to order a search for it

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