nginx hit counter

hitcounter.conf

server {
    listen 80 default_server;
    listen [::]:80 default_server;

    #NGINX_INSERT0;
    #NGINX_INSERT1;

    if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})") {
        set $year $1;
        set $month $2;
        set $day $3;
        set $hour $4;
        set $minutes $5;
        set $seconds $6;
    }

    access_log /var/log/nginx/$year-$month-$day.$hour-$minutes.hc-access.log;

    root /var/www/html;

    #NGINX_INSERT2;

    # Add index.php to the list if you are using PHP
    index index.html index.htm index.nginx-debian.html;

    server_name _;

    #NGINX_INSERT3;

    location ~ /pi/([a-z0-9-]+)/([A-Za-z0-9-]+)([/]*) {

        if ($arg_ua ~* ^-?[0-9]\d*(\.\d+)?$) {    
            return 301 https://www.google-analytics.com/collect?cid=$1.$pid&z=$msec&v=1&t=event&tid=UA-$arg_ua&ev=1&ec=$1&ea=$2&el=$arg_el;
        }

        add_header Access-Control-Allow-Origin "*";
        empty_gif;
    }

    # the blackhole
    location ~ /null/(.*) {
        add_header Access-Control-Allow-Origin "*";
        empty_gif;
    }

    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        try_files $uri $uri/ =404;
    }
    
    #NGINX_INSERT4;
}

server {
    listen 443 default_server;
    listen [::]:443 default_server;

    #NGINX_INSERT0;

    ssl         on;
    ssl_certificate      /app/etc/nginx/ssl/example.pem;
    ssl_certificate_key  /app/etc/nginx/ssl/example.key;

    #NGINX_INSERT1;

    if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})") {
        set $year $1;
        set $month $2;
        set $day $3;
        set $hour $4;
        set $minutes $5;
        set $seconds $6;
    }

    access_log /var/log/nginx/$year-$month-$day.$hour-$minutes.hc-access.log;

    root /var/www/html;

    #NGINX_INSERT2;

    # Add index.php to the list if you are using PHP
    index index.html index.htm index.nginx-debian.html;

    server_name _;

    #NGINX_INSERT3;

    location ~ /pi/([a-z0-9-]+)/([A-Za-z0-9-]+)([/]*) {
        if ($arg_ua ~* ^-?[0-9]\d*(\.\d+)?$) {    
            return 301 https://www.google-analytics.com/collect?cid=$1.$pid&z=$msec&v=1&t=event&tid=UA-$arg_ua&ev=1&ec=$1&ea=$2&el=$arg_el;
        }

        add_header Access-Control-Allow-Origin "*";
        empty_gif;
    }
    
    # the blackhole
    location ~ /null/(.*) {
        add_header Access-Control-Allow-Origin "*";
        empty_gif;
    }

    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        try_files $uri $uri/ =404;
    }
    
    #NGINX_INSERT4;
}