You can use the following code to retrieve your client's external address.

$ nano myip.php
<?php
function getVisitorIp()
{
// Recogemos la IP de la cabecera de la conexión
if (!empty($_SERVER['HTTP_CLIENT_IP']))
{
$ipAdress = $_SERVER['HTTP_CLIENT_IP'];
}
// Caso en que la IP llega a través de un Proxy
elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
{
$ipAdress = $_SERVER['HTTP_X_FORWARDED_FOR'];
}
// Caso en que la IP lleva a través de la cabecera de conexión remota
else
{
$ipAdress = $_SERVER['REMOTE_ADDR'];
}
return $ipAdress;
}

echo getVisitorIp();
?>

The default IP address retrieval site is often overwhelmed by requests and does not respond timely (20 minutes off every hour :-( ).

I currently use some of the sites mentioned (and tested) with minor variations :-) :
- https://myexternalip.com/raw
- http://api.ipify.org
- http://ipecho.net/plain

No problems anymore.

Doesn't work on Windows XP or 2003. No .Net framework 4.6.2 for there systems. Need previous version, where can I download it?

Exelente programa, Gracias

ok

es un buen programa

Well, Thanks