I mentioned your daughter because she has more than once contributed here, at 9 years old the youngest to have done so as far as I know (and also therefore the most vulnerable)
I write on that particular site (and others) and have done for a couple of years. I know for a fact that that particular one has some material which in my opinion both as a moderator and as a parent makes it unsuitable for posting a link to on a public board.
(Cacher) Jouez une partie en temps réel avec un joueur en ligne! Pour que cela soit possible, vous et votre adversaire devez choisir l'option "Jouer et rester ici" par défaut puis recharger la page avec la touche F5. (TeamBundy) (Montrer toutes les astuces)