PHP : JavaScript Web Page Load Time

Anda hanya harus menambahkan ini untuk mengetahui berapa lama load page time site anda :

<p id = "loadingtime"></p>
<script type="text/javascript">
before = (new Date()).getTime();
function pageload()
{
    var after = (new Date()).getTime();
    var sec = (after-before)/1000;
    var p = document.getElementById("loadingtime");
    p.innerHTML = "Page load: " + sec + " seconds.";
       
}
 window.onload = function ()
    {
        pageload();
    }
</script>