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It showed up in an Adwords ad -- along with a subdomain, of course -- in this form:
Are we in for a new wave of "How many hyphens in a row can I have in a domain name?" posts. Or has this been happening all along and I've just not noticed?
Think about the fundamental purpose of the domain name system. It's to assign a permanent name to endpoints, independent of IP address. In some cases, it serves a purpose to make the name easily-remembered, easily-typed, and mnemonic.
But not in all cases.
If the name is being used for some kind of machine-to-machine connectivity, the only need is for a name that is unique and independent of IP address.
One advantage of a domain name made up of random characters is that it's unlikely to be taken from you in a trademark dispute. :)
And I can think of a number of reasons why spammers, hackers, and a few other unsavory types might actually prefer domain names made up of random characters.
Well, I wouldn't be surprised to see random numbers, random hex digits, random characters, etc. start showing up as domain names.
this-place--widget.com can be registered.
this-place--this--widget.com can be registered.
this--place--widget.com returns an error.
this--place-widget.com returns an error.
So it seems that only double hyphens as a first occurence get flagged.