using System;

using System.Net;

public class Program

{

    public static void Main()

    {

        string url = "https://api.ap.org/v2/search/photo?apiKey=Xp0PWKrGrW6KEEqPl7ZcFVMcgVtQTKA5&q=Cleveland%20Browns&page=1&count=100";

​

        MakeWebRequestWithTLS(url, SecurityProtocolType.Tls12);

        Console.WriteLine();

        MakeWebRequestWithTLS(url, SecurityProtocolType.Tls11);

    }

    private static void MakeWebRequestWithTLS(string url, SecurityProtocolType protocolType)

    {

        ServicePointManager.Expect100Continue = true;

        ServicePointManager.SecurityProtocol = protocolType;

        Console.WriteLine("Calling with {0}...", ServicePointManager.SecurityProtocol);

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

        HttpWebResponse response = (HttpWebResponse)request.GetResponse();

        Console.WriteLine("- Response is {0}", response.StatusCode);

​

    }

}