Make HEAD request to get content info as JSON, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Net.Http;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            HttpClient client = new HttpClient();

var response = client.GetAsync("http://dr.dk").Result;

if (response.IsSuccessStatusCode)
            {
                // by calling .Result you are performing a synchronous call
                var responseContent = response.Content;

// by calling .Result you are synchronously reading the result
                string responseString = responseContent.ReadAsStringAsync().Result;
                
                var headers = response.Content.Headers;
                
                string json = "{\"length\":"+headers.ContentLength+",\"type\":"+headers.ContentLength+"}";

Console.WriteLine(json);
            }
        }
    }
}

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Compilation time: 0,14 sec, absolute running time: 0,98 sec, cpu time: 0,73 sec, average memory usage: 27 Mb, average nr of threads: 12