<?php
$host=(isset($_SERVER['HTTP_X_FORWARDED_HOST']))?$_SERVER['HTTP_X_FORWARDED_HOST']:'a3.m.pureastro.mobi';
$content=@file_get_contents("http://{$host}/sitemap.php");
header('content-type: application/x-gzip');
header('Content-Disposition: attachment; filename="sitemap.xml.gz"');
echo @gzencode($content,9);
?>