lucy24 - 3:11 am on May 1, 2013 (gmt 0)
Oops. Did I read your question backward?
if I put that same fake url into my browser it takes me to a Verizon search page
If you can come up with a simple tool that can distinguish mechanically between
-- typo or alias domains that redirect to a different domain of the human owner's choice
-- parked domains that either redirect or show content from the dragon in residence
... well, you'll be able to retire to Aruba next year. Identifying domains that aren't registered at all is trivial by comparison: your robot will go the rounds of DNS and will come up empty-handed. But it sounds as if that isn't what you're looking for.