The domain name of the server (for virtual hosting), mandatory since HTTP/1.1. Although domain name are specified as case-insensitive[7][8], it is not specified whether the contents of the Host field should be interpreted in a case-insensitive manner[9] and in practice some implementations of virtual hosting interpret the contents of the Host field in a case-sensitive manner.[citation needed] Host: en.wikipedia.org

'Declaration
 
Public Shared ReadOnly Host As NHttpHeaderFieldName

'Usage
 
Dim value As NHttpHeaderFieldName
 
value = NHttpHeaderFieldName.Host

public static readonly NHttpHeaderFieldName Host