cURL - Nefunguje správně, doména neexistuje.

<?php
function get_link_status($url, $timeout = 10){
    $ch = curl_init();
    // set cURL options
    $opts = array(CURLOPT_RETURNTRANSFER => true,  // do not output to browser
                  CURLOPT_URL => $url,             // set URL
                  CURLOPT_NOBODY => true,          // do a HEAD request only
                  CURLOPT_FOLLOWLOCATION => true,  // follow location headers
                  CURLOPT_TIMEOUT => $timeout);    // set timeout


    curl_setopt_array($ch, $opts);

    curl_exec($ch); // do it!

    $status = curl_getinfo($ch, CURLINFO_HTTP_CODE); // find HTTP status

    curl_close($ch); // close handle

    return $status;
}

get_link_status("http://gooooooooooooooogle-neni.com",20)