好久没登录的网站今天一上提示：
Welcome to nginx!
If you see this page, the nginx web server is successfully installed and working. Further configuration is required.
以为nginx有问题

重置了vps和宝塔，还是一样
后面挂了全局发现可以了
但是检测被墙，看了好几个检测网站，都提示 被墙/污染：正常
好烦，有大神解释么，或推荐检测网站