Nginx + WP installed on custom directory + Agressive Caching

# You may add your server blocks inside "server brackets" { }

server {
        listen   80;

        root /var/www/example.com/public_html;
        index index.php index.html index.htm;

        server_name www.example.com example.com;

#The location block below will make sure if a some other file/directory exist, it will be served first.
#If that fails, request will be checked inside /custom-wp-directory/ i.e. /blog/ directory.
#So, if you install WP inside a /custom/ dir. instead of the root dir. it will work out of the box!
#More info: https://rtcamp.com/support/topic/accessing-non-wordpress-directory-in-website-root/

        location / {
                try_files $uri $uri/ /custom-wp-directory/index.php?q=$uri&$args;
        }

        # Define default caching of 24h
        expires 86400s;
        add_header Pragma public;
        add_header Cache-Control "max-age=86400, public, must-revalidate, proxy-revalidate";

        # Add trailing slash to */wp-admin requests.
        rewrite /wp-admin$ $scheme://$host$uri/ permanent;

        # deliver a static 404
        error_page 404 /404.html;

        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
              root /usr/share/nginx/www;
        }

        # Don't log robots.txt requests
        location = /robots.txt {
        allow all;
        log_not_found off;
        access_log off;
    }

        # Rewrite for versioned CSS+JS via filemtime
        location ~* ^.+\.(css|js)$ {
        rewrite ^(.+)\.(\d+)\.(css|js)$ $1.$3 last;
        expires 31536000s;
        access_log off;
        log_not_found off;
        add_header Pragma public;
        add_header Cache-Control "max-age=31536000, public";
    }


        # Aggressive caching for static files
        # If you alter static files often, please uncomment the add_header Cache-Control and use it
        add_header Cache-Control "max-age=31536000, public, must-revalidate, proxy-revalidate";
        location ~* \.(asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|eot|exe|gif|gz|gzip|ico|jpg|jpeg|jpe|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|odb|odc|odf|odg|odp|ods|odt|ogg|ogv|otf|pdf|png|pot|pps|ppt|pptx|ra|ram|svg|svgz|swf|tar|t?gz|tif|tiff|ttf|wav|webm|wma|woff|wri|xla|xls|xlsx|xlt|xlw|zip)$
 {
        expires 31536000s;
        access_log off;
        log_not_found off;
        add_header Pragma public;
        add_header Cache-Control "max-age=31536000, public";
    }


        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        location ~ \.php$ {
                try_files $uri =404;
                #fastcgi_pass 127.0.0.1:9000;
                # With php5-fpm:
                fastcgi_pass unix:/var/run/php5-fpm.sock;
                fastcgi_index index.php;
                include fastcgi_params;
                 }


}