[quincepie]

There was a also proposal for ICANN to reserve ".internal" (earlier this year) which is what I currently use. I suppose home.arpa has the advantage of being strictly resolved in the local zone while ".internal" would be more for anything in a private network (or a large multi zone network)?

[1] https://www.icann.org/en/public-comment/proceeding/proposed-...

[AndyMcConachie]

This proposal is still wending its way through ICANN's processes. It should finalize with an ICANN Board resolution sometime this year.