Filter out request telemetry that is not to my hostname

NotMyHostnameFilter.cs

using Microsoft.ApplicationInsights.Channel;
using Microsoft.ApplicationInsights.Extensibility;
using System;

public class NotMyHostNameFilter : Microsoft.ApplicationInsights.Extensibility.ITelemetryProcessor
{
    private ITelemetryProcessor Next { get; set; }
    private bool parsed = false;
    public string ExceptionToFilter { get; set; }

    public NotMyHostNameFilter(ITelemetryProcessor next)
    {
        this.Next = next;
    }

    public void Process(ITelemetry item)
    {
        if (item is Microsoft.ApplicationInsights.DataContracts.RequestTelemetry)
        {
            var request = item as Microsoft.ApplicationInsights.DataContracts.RequestTelemetry;
            if (!request.Url.Host.Equals("www.debugthings.com", StringComparison.CurrentCultureIgnoreCase))
            {
                // If this is not for my server www.debugthings.com then return
                return;
            }
        }
        this.Next.Process(item);
    }
}