There is an arbitrary and ridiculously low limit of 32 websites that can be whitelisted in the parental control profiles. This is absurd when Google alone has so many subdomains that you almost have to take up the whole 32 limit just to let your kid watch YouTube. 
Then, if you wanna let your kid play video games as well there's so many subdomains for each game servers and before you know it, there is no way to just let your kids devices be properly managed through your parental control service. If this is not fixed soon, I'm going to go with a competitor.