Google bot

function curlBot($url, $redirect = 2) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_USERAGENT, "Google Mozilla/5.0 (compatible; Googlebot/2.1;)");
    if ($redirect) {
        curl_setopt($ch, CURLOPT_MAXREDIRS, $redirect);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    }
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_REFERER, "http://www.google.com/bot.html");
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5000);
    curl_setopt($ch, CURLOPT_TIMEOUT, 5000);
    $result = curl_exec($ch);
    return $result;
}
// header('Content-type:image/png');
echo curlBot('https://www.hanhtinhcongnghe.com');