I purchased a new commercial SSL certificate, but after configuring it, it keeps showing that the link is not trusted.
Please give me some advice to describe the problem better. Posting the URL is not advertising, I hope someone can give me some advice.
The following is the configuration file of nginx,
https://www.domain.com

server {

    listen 443;
    server_name www.domain.com;
    index index.html index.htm index.php default.html default.htm default.php;
    root  /var/www;

    include yb.conf;
    #error_page   404   /404.html;
    location ~ [^/]\.php(/|$)
    {
        # comment try_files $uri =404; to enable pathinfo
        try_files $uri =404;
        fastcgi_pass  unix:/tmp/php-cgi.sock;
        fastcgi_index index.php;
        include fastcgi.conf;
        #include pathinfo.conf;
    }

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
    {
        expires      30d;
    }

    location ~ .*\.(js|css)?$
    {
        expires      12h;
    }

    access_log  /var/wwwlogs/www.
domain.com.log  access;

    ssl on; 
    ssl_certificate /var/www/conf/
domain.crt; 
    ssl_certificate_key /var/www/conf/server.key;
}

I hope you can help me figure out what the problem is. When I tested it under Firefox, it always showed that the link was not trusted, and under IE, it showed that the connection was not encrypted.

I already want to die, wipe