This question already has an answer here:
- Top level domain for private networks? 14 answers
Is it okay to use
app.mycoolname.local for URLs that are private / internal?
We have several applications that are web based, but they are private apps and are not exposed to the public.
We have been using ".net" for some of these, which doesn't make sense since they could collied with a real URL on the internet. That hasn't been a problem yet.
But now I have a new group of applications and I want to name them using a "popular" name that will definatly collide with a URL on the internet.
Should I use
app.mycoolname.local? I have it set up this way right now, and it seems to be working. I have read a few places where it was encouraged, but then I saw a few places where it wasn't working (some problem on Mac, but we don't have those, so NBD).