HTTP Request with Arduino Ethernet Shield

Hi.
I have a account in Voipraider and it´s possible to send a SMS via url like this:
https://www.voipraider.com/myaccount/sendsms.php?username=myusername&password=mypassword&from=xxxxxxxxxx&to=phonenumber&text=ARDUINO
If I paste this url in any browser with my login, password and the destination phone number, all works ok.
The message ARDUINO is sent to phone.
I´m trying to send this via Arduino Ethernet Shield with this code but nothing happens. The server connects ok but the message dont arrive. What am I doing wrong? Please if you can help me I appreciate it.
Thank you

#include <SPI.h>
#include <Ethernet.h>


byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };

char server[] = "www.voipraider.com"; 

// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(192,168,0,108);

// Initialize the Ethernet client library
// with the IP address and port of the server 
// that you want to connect to (port 80 is default for HTTP):
EthernetClient client;

void setup() {
 // Open serial communications and wait for port to open:
  Serial.begin(9600);
   while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }

  // start the Ethernet connection:
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // no point in carrying on, so do nothing forevermore:
    // try to congifure using IP address instead of DHCP:
    Ethernet.begin(mac, ip);
  }
  // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.println("connecting...");

  // if you get a connection, report back via serial:
  if (client.connect(server, 80)) {
    Serial.println("connected");
    // Make a HTTP request:
    client.println("GET /myaccount/sendsms.php?username=myusername&password=mypassword&from=xxxxxxxxxx&to=phonenumber&text=arduino HTTP/1.1");
    client.println("Host: www.voipraider.com");
    client.println("Connection: close");
    client.println();
  } 
  else {
    // kf you didn't get a connection to the server:
    Serial.println("connection failed");
  }
}

void loop()
{
  // if there are incoming bytes available 
  // from the server, read them and print them:
  if (client.available()) {
    char c = client.read();
    Serial.print(c);
  }

  // if the server's disconnected, stop the client:
  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();

    // do nothing forevermore:
    while(true);
  }
}

I don't think the arduino does the s part of https://

I did a rough speed test recently that shows loop() in a very simple program whizzes through at 150k times per second.

I bet you’re one of very few people who know that.

raschemmel:

I did a rough speed test recently that shows loop() in a very simple program whizzes through at 150k times per second.

I bet you're one of very few people who know that.

What are you talking about? What does this have to do with this thread?