Domain Name System (DNS) Case Insensitivity Clarification

@article{Eastlake2006DomainNS,
  title={Domain Name System (DNS) Case Insensitivity Clarification},
  author={Donald E. Eastlake},
  journal={RFC},
  year={2006},
  volume={4343},
  pages={1-10}
}
Status of This Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract Domain Name System (DNS) names are "case insensitive". This document explains exactly what that means and provides a clear… 
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