I have a script that is for clans to purchase. This script basicaly acts as a website for clans that would like to manage their members, rosters, matches, stats, etc primarily based around first or third person shooter games. Currently the script has been purchased by about 25 clans, but it's starting to become a headache for me trying to make sure they aren't just passing this out to their buddy clans.
I am looking for some type of script that will use a activation code system, a domain check system, or any type of security measure that can be housed on my server and would need to be verified for installation to commence. Something that would have information they would need to provide ..... it would be checked on my server to see if the information matches, then would allow them to continue with the install. Also, I would like this to be something where they cannot just keep re-installing etc, without me knowing.