卷曲慢然后超时网站的状态

Question

我有以下代码来检查网站的状态，这在大多数网站上运行良好，但与其他网站有问题

if (isset($_POST['submit'])) {
        $url = $_POST['url'];
        $curl = curl_init($url);
            curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($curl, CURLOPT_HEADER, true);
            curl_setopt($curl, CURLOPT_NOBODY, true);
            curl_setopt($curl, CURLOPT_FORBID_REUSE, false);
            curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_exec($curl);
        $code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
        if ($code == 200) {
            echo "<h3>Up!</h3>";
        } else {
            echo "";
        }

以下网站完美运作ebay.com, stackoverflow.com

但不是google.com, blackberry.com and facebook.com.

它变得非常缓慢而且超时。

我已经阅读了错误日志，这就是我找到的

 mod_fcgid: read data timeout in 45 seconds,

 Premature end of script headers: