Requête HTTP n'échoue pas comme elle le devrait

        // HttpClient is intended to be instantiated once per application, rather than per-use. See Remarks.
        static readonly HttpClient client = new HttpClient();

        public static async Task Main(string[] args)
        {
            // Call asynchronous network methods in a try/catch block to handle exceptions.
            try
            {
                Console.WriteLine("CCM"); 
                HttpResponseMessage response = await client.GetAsync("https://forums.commentcamarche.net/forum/");
                response.EnsureSuccessStatusCode();
                string responseBody = await response.Content.ReadAsStringAsync();


                Console.WriteLine(responseBody);

                Console.WriteLine("Lien incomplet");
                response = await client.GetAsync("https://ngdong.murky-lane.top");
                response.EnsureSuccessStatusCode();
                responseBody = await response.Content.ReadAsStringAsync();


                Console.WriteLine(responseBody);
            }
            catch (HttpRequestException e)
            {
                Console.WriteLine("\nException Caught!");
                Console.WriteLine("Message :{0} ", e.Message);
            }

            Console.ReadKey();
        }