Good answer, don't give away your secret sauce.
Having said that, your magic isn't working too well. I searched for http://www.leandomainsearch.com/search?q=apps
and literally EVERY SINGLE GREEN hit isn't really available after double-checking it. Seems like you'd need a 2nd secret sauce to further distill whatever the 1st run returned.
Hey -- there was a production bug that caused every result to come back as registered when you clicked "Double check availability". I fixed this a few minutes ago. Sorry about that.