Nginx Wordpress caching

caching.conf

# The path to store the cache files, limit the folder to 100MB
fastcgi_cache_path /var/run/nginx-cache levels=1:2 keys_zone=WORDPRESS:100m;

# A unique request is defined by this cache key
fastcgi_cache_key "$scheme$request_method$host$request_uri";

# Show the cached version if upstream gives a timeout or a HTTP 500 error
fastcgi_cache_use_stale error timeout invalid_header http_500;

# Don't use the following headers to define the cache variables
fastcgi_ignore_headers Cache-Control Expires Set-Cookie;

wordpress-website.conf

upstream php {
    server 127.0.0.1:9000;
}
server {
    listen [::]:80;
    listen 80;
    server_name www.website.nl
    root /var/www/www.website.nl;
    index index.php;

    # Keepalive for 70 seconds
    keepalive_timeout 70;

    # Increase proxy buffers for large requests
    proxy_buffer_size 128k;
    proxy_buffers 4 256k;
    proxy_busy_buffers_size 256k;

    # Upload limit
    client_max_body_size 50m;
    client_body_buffer_size 128k;

    # Initialize the variable that specified to skip the cache
    set $skip_cache 0;

    # POST requests and url's with a query string should always skip cache
    if ($request_method = POST) {
        set $skip_cache 1;
    }
    if ($query_string != "") {
        set $skip_cache 1;
    }

    # Don't cache url's containing the following segments
    if ($request_uri ~* "/wp-admin/|/xmlrpc.php|wp-.*.php|/feed/|index.php|sitemap(_index)?.xml") {
        set $skip_cache 1;
    }

    # Don't use the cache for logged in users or recent commenters
    if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {
        set $skip_cache 1;
    }

    location / {
        try_files $uri $uri/ /index.php?$args;
    }

    # PHP files should go to PHP-FPM
    location ~ \.php$ {
        include fastcgi_params;

        # Extra security measure, but only possible when PHP-FPM is on the same server as Nginx
        try_files $uri =404;
        
        # Fastcgi configuration
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        fastcgi_intercept_errors on;
        fastcgi_buffer_size 128k;
        fastcgi_buffers 4 256k;
        fastcgi_busy_buffers_size 256k;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_index index.php;

        # Don't cache when $skip_cache is true
        fastcgi_cache_bypass $skip_cache;
        fastcgi_no_cache $skip_cache;

        # Use the WORDPRESS zone
        fastcgi_cache WORDPRESS;
        
        # Cache everything for 1 week
        fastcgi_cache_valid 1w;

        # Pass request to PHP-FPM        
        fastcgi_pass php;
    }
    
    # Don't write to accesslog for these files
    location = /favicon.ico {
        log_not_found off;
        access_log off;
    }
    location = /robots.txt {
        allow all;
        log_not_found off;
        access_log off;
    }

    # Media files with one of these extensions should be cached by the browser
    location ~* \.(xml|ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|css|rss|atom|js|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ {
        expires max;
        log_not_found off;
    }

    # Deny access to .* files
    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }
    
    # Add cache status header for easy debugging
    add_header X-Cache $upstream_cache_status;
}

Thank you!