Due to the rarity of one-word dot-com domain names, many unconventional domain names, domain hacks, have been created. They make use of the top-level domain as an integral part of the Web site's title. Three popular domain hack Web sites are cr.yp.to, blo.gs and del.icio.us, which spell out "crypto", "blogs" and "delicious", respectively.

Unconventional domain names are also used to create unconventional email addresses. Non-working examples that spell 'James' are j@m.es and j@mes.com, which use the domain namesm.es (of Spain's .es) and mes.com, respectively.