[FMX] An idea about domain check

Hi all,
I have an idea about making a flash version of A simple domain check (one field for the name of the site and the other is for the domain it self)
the base is to take the 2 input field and combine them together, to create for instance the name “syphex.com
the problem that bugs me is how do i use this value from that point on…
where do I check it, and how ? (if its even possible)

great day to you all :smiley: