There's a lot of 2-letter domains: https://en.wikipedia.org/wiki/Single-letter_s...

		ipp on May 30, 2015 \| parent \| context \| favorite \| on: Js.org Subdomains for GitHub Pages There's a lot of 2-letter domains: https://en.wikipedia.org/wiki/Single-letter_second-level_dom... Single-letter domains for .org, .net, and .com are/were reserved, although there are exceptions such as http://www.x.org. Other TLDs may vary.