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A UriHostNameType that indicates the type of the host name. If the type of the host name cannot be determined or if the host name is null or a zero-length string, this method returns UriHostNameType.Unknown.
The Uri.CheckHostName(string) method checks that the host name provided meets the requirements for a valid Internet host name. It does not, however, perform a host-name lookup to verify the existence of the host.
The following example demonstrates using the Uri.CheckHostName(string) method.
C# Example
using System;
public class UriTest {
public static void Main() {
Console.WriteLine(Uri.CheckHostName("www.contoso.com"));
}
}
The output is
Dns