What is taking my kid to this website?? http://zagent851.hola.org/ws_client

Norton Family | Parental Control
1

What is 

  • http :// zagent851 .hola. org/ws_client

I get a message from Norton Family several times a day that this website has been blocked.  I don't think my child is trying to access it.  How do I find the source and fix it?