<?php
if (substr($_SERVER['HTTP_HOST'],0,4) ==  "www.")  $host = $_SERVER['HTTP_HOST'];
else  $host = "www." . $_SERVER['HTTP_HOST'];
	header("Content-type: text/plain");
?>
User-agent: *
Allow: /
Sitemap: http://<?php echo $host ?>/sitemap.xml
Crawl-delay: 1
Host: <?php echo strtolower($host) ?>