Problem with zone delegation with private gTLD

Matthew Pounsett matt at
Mon Apr 8 17:18:37 UTC 2019

On Mon, 8 Apr 2019 at 10:35, Xavier Humbert
<xavier.humbert at> wrote:
> On 08/04/2019 13:05, Matus UHLAR - fantomas wrote:
> > I believe there should be reserved gTLD for such usage.
> Is this not what the TLD /.invalid/ is supposed to be ?

RFC2606 reserves test, example, invalid, and localhost, for "testing
and documentation," which seems to fit this use-case.  'invalid'
doesn't seem to me to be intended for use as a generic private TLD
though, as was suggested up-thread.  However, if the OP is setting up
a private network, with no Internet connection, for a demonstration,
then any TLD at all could be used; a private root will be required

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