.In.Net Technical and Syntax Specifications

Every domain name must meet the following technical and syntax requirements:

  1. The domain string must consist exclusively of the letters A-Z (case insensitive), the hyphen character, and the numbers 0-9
  2. The domain name cannot begin or end with a hyphen
  3. The registration period of the domain name applied for must be between 1 and 10 years during both Landrush and General Availability
  4. Internationalized Domain Names (IDNs) must comply with the IDN policy published at https://www.centralnic.com/names/domains/idn#rules
  5. The domain name can only have two consecutive hyphens (–) in the 3rd and 4th positions, when preceded by “xn” and followed by a label that corresponds with an internationalized domain name containing characters referred to in (c) above
  6. The length of the domain name must be between 2 and 63 characters for ASCII Registrations. 1 Character IDNs can be registered in Chinese, Japanese & Korean languages