Whole site behind login and disable robots.txt so search engines can’t crawl. 2 quick and simple fixes to make this site much more secure and keep it under the radar! I’d happily help myself if the owners needed developers
As I say,you don't have teenage offspring,do you? My 13 year old daughter can go through a Parental control faster than I can set them and yes, when it comes to tech,teenagers are little adults and have a far better understanding of tech than older age groups.