You either love or hate Sun Tzu Quotes but, when they apply i’m inclined to use them 
“It is said that if you know your enemies and know yourself, you will not be imperiled in a hundred battles; if you do not know your enemies but do know yourself, you will win one and lose one; if you do not know your enemies nor yourself, you will be imperiled in every single battle”
And so it is also with some web servers! Do you manage your own hosting? Or, like the million others out there, do you share one mega-server hosting hundreds of other sites as well?