Quick and dirty script to check if a web server host is connected to the internet using VPN

ipcheck.php

<?php
$ip = file_get_contents("https://api.ipify.org/");
if(!isset($_GET["raw"]))
        echo "WAN IP from backend: " . $ip;
else {
        echo $ip;
        return;
}
?>

<script>
function httpGet(theUrl)
{
    var xmlHttp = new XMLHttpRequest();
    xmlHttp.open( "GET", theUrl, false ); // false for synchronous request
    xmlHttp.send( null );
    return xmlHttp.responseText;
}


const ipclient = httpGet("https://api.ipify.org/");
const ipserver = httpGet("?raw");
const seemssafe = ipclient != ipserver;
alert("Check: " + seemssafe + "\nIP from browser: " + ipclient + "\nIP from server: " + ipserver);
window.history.back();
</script>

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