Please take a look at my website:vynora
It's not finished. I have put a PHP header in the top of my HTML page:
<?php if (substr_count($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip')) ob_start("ob_gzhandler"); else ob_start(); ?>
<?php
header("Cache-Control: max-age=6000");
?>
When I go to pagespeed of Google it tells me that I should optimize my browser cache, please take a look:Google pagespeed
But I already did using PHP. So how is this possible?