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I would like to use a domain name in an example. I know that example.com exists for this purpose, but I would like the domain name not to exist (and not to start existing later). Is there any canonical example of a domain name which is guaranteed not to exist?

a3nm
  • 939

1 Answers1

40

As per RFC 6761 section 6.4, the domain invalid. and any names falling within .invalid., can be assumed not to exist.

a3nm
  • 939