This one is a must for developers and system admins. You need to know how long your site takes to load. Nobody sticks around waiting for a site to load anymore – there's way too much content out there for that. Use this script to find out if your site is taking too long, and if it is, fix it..

PHP Code:

$starttime = microtime();
$startarray = explode(" ", $starttime);
$starttime = $startarray[1] + $startarray[0];

Insert this code snippet directly before the closing </body> tag of your document:

PHP Code:

$endtime = microtime();
$endarray = explode(" ", $endtime);
$endtime = $endarray[1] + $endarray[0];
$totaltime = $endtime - $starttime;
$totaltime = round($totaltime,10);
echo "Seconds To Load: ";
printf ("%f\n", $totaltime);

Example:

Seconds To Load: 0.000070