通过检查CURLINFO_HTTP_CODE来测试网站是否已启动，即使网站为假，也会返回200

I'm testing this code snippet on a Windows 7 machine running EasyPHP and PHP5, when I run the code it still returns code 200, I'm using a non-existent url so it shouldn't, should it? Is this because a redirection takes place for example to I'm testing this code snippet on a Windows 7 ma