HTTP Header

[olimex]

Hi, I have this code from an example:

    if (client.connect(server, port))
    {
      Serial.println("Connected");
      // Make a HTTP request:
      client.println("GET / HTTP/1.1");
      client.println("Host: gsiot-q2ah-668j.try.yaler.net");
      client.println("Connection: keep-alive");
      client.println();
    }

What is the meaning of "keep-alive"? What if I change it with "close"?

Thank you,
Luca

[system]

See HTTP persistent connection - Wikipedia

[olimex]

So simple! Thank you :%