Question Block specific URL from accessing plesk

[mazeman23]

i have plesk on my own server and have 3 urls for the serverspace they all point to the same ip adress...means the homepage will be opened by all 3 of them...my question is now how can i block or diasbale one of my 3 urls to access the website hosted on my plesk

 

[Bitpalast]

What exactly do you mean by "homepage"?