diff --git a/etc/nginx/fastcgi_cache b/etc/nginx/fastcgi_cache
index a2418d5..cdf6b19 100644
--- a/etc/nginx/fastcgi_cache
+++ b/etc/nginx/fastcgi_cache
@@ -3,43 +3,42 @@
 
 fastcgi_cache_path /var/cache/nginx/fastcgi_cache levels=1:2 keys_zone=FASTCGICACHE:100m max_size=1g inactive=60m;
 fastcgi_cache_key "$scheme$request_method$host$request_uri";
-fastcgi_cache_use_stale	error timeout invalid_header updating http_500 http_503;
+fastcgi_cache_use_stale error timeout invalid_header updating http_500 http_503;
 fastcgi_cache_revalidate on;
 fastcgi_cache_background_update on;
 
-# Header status
-add_header X-FastCGI-Cache $upstream_cache_status;
-
-# Ignore header
-fastcgi_ignore_headers Cache-Control Expires Set-Cookie;
-
-# Designed to be used with Nginx Cache Controller WP plugin
-#fastcgi_pass_header "X-Accel-Redirect";
-#fastcgi_pass_header "X-Accel-Expires";
 
 # FastCGI Log Format
 log_format cache '$remote_addr - $upstream_cache_status [$time_local] '
                  '"$request" $status $body_bytes_sent '
                  '"$http_referer" "$http_user_agent"';
 
-# Map Mobile
-map $http_user_agent $is_mobile {
-	default 0;
-	~*android|ip(hone|ad|od)|windows\s+(?:ce|phone) 1;
-	~*symbian|sony|samsung|lg|blackberry 1;
-	~*mobile|mini 1;
+
+## Initialize default caching conditions. ##
+
+# Purge cache for request method.
+map $request_method $purge_method {
+    PURGE 1;
+    default 0;
 }
 
-# Map Cache
-
-# Skip caching on post
+# Skip caching for request method.
 map $request_method $skip_cache {
-	default 0;
-	POST 1;
+    default 0;
+    POST 1;
 }
 
-# Skip PHP Session cookie
-map $http_cookie $skip_cache {
-	default 0;
-	~SESS 1;
+# Skip caching for mobile device.
+# COMMENTED by default as most modern website are responsive and smartphone are widely used.
+map $http_user_agent $is_mobile {
+   default 0;
+#    ~*2.0\ MMP|240x320|400X240|AvantGo|BlackBerry|Blazer|Cellphone|Danger|DoCoMo|Elaine/3.0|EudoraWeb|Googlebot-Mobile|hiptop|IEMobile|KYOCERA/WX310K|LG/U990|MIDP-2.|MMEF20|MOT-V|NetFront|Newt|Nintendo\ Wii|Nitro|Nokia|Opera\ Mini|Palm|PlayStation\ Portable|portalmmm|Proxinet|ProxiNet|SHARP-TQ-GX10|SHG-i900|Small|SonyEricsson|Symbian\ OS|SymbianOS|TS21i-10|UP.Browser|UP.Link|webOS|Windows\ CE|WinWAP|YahooSeeker/M1A1-R2D2|iPhone|iPod|Android|BlackBerry9530|LG-TU915\ Obigo|LGE\ VX|webOS|Nokia5800 1;
+#    ~*w3c\ |w3c-|acs-|alav|alca|amoi|audi|avan|benq|bird|blac|blaz|brew|cell|cldc|cmd-|dang|doco|eric|hipt|htc_|inno|ipaq|ipod|jigs|kddi|keji|leno|lg-c|lg-d|lg-g|lge-|lg/u|maui|maxo|midp|mits|mmef|mobi|mot-|moto|mwbp|nec-|newt|noki|palm|pana|pant|phil|play|port|prox|qwap|sage|sams|sany|sch-|sec-|send|seri|sgh-|shar|sie-|siem|smal|smar|sony|sph-|symb|t-mo|teli|tim-|tosh|tsm-|upg1|upsi|vk-v|voda|wap-|wapa|wapi|wapp|wapr|webc|winw|winw|xda\ |xda- 1;
+#    ~*symbian|sony|samsung|lg|blackberry|nokia|mobile|mini|wap 1;
+}
+
+# Cache uri request method (used by WP SuperCache).
+map $request_method $cache_uri {
+    default $request_uri;
+    POST "null cache";
 }
diff --git a/etc/nginx/includes/fastcgi_cache.conf b/etc/nginx/includes/fastcgi_cache.conf
index 753aa27..708ec4f 100644
--- a/etc/nginx/includes/fastcgi_cache.conf
+++ b/etc/nginx/includes/fastcgi_cache.conf
@@ -9,4 +9,19 @@ fastcgi_cache_min_uses 1;
 fastcgi_cache_lock on;
 
 fastcgi_cache_bypass $skip_cache $is_mobile;
+fastcgi_cache_bypass $http_pragma $http_authorization;
+
 fastcgi_no_cache $skip_cache $is_mobile;
+fastcgi_no_cache $http_pragma $http_authorization;
+
+fastcgi_cache_purge $purge_method;
+
+# Ignore header
+fastcgi_ignore_headers Cache-Control Expires Set-Cookie;
+
+# Header status
+add_header X-FastCGI-Cache $upstream_cache_status;
+
+# Designed to be used with Nginx Cache Controller WP plugin
+#fastcgi_pass_header "X-Accel-Redirect";
+#fastcgi_pass_header "X-Accel-Expires";
diff --git a/etc/nginx/includes/rules_fastcgi_cache.conf b/etc/nginx/includes/rules_fastcgi_cache.conf
index 9acfc50..64a55c4 100644
--- a/etc/nginx/includes/rules_fastcgi_cache.conf
+++ b/etc/nginx/includes/rules_fastcgi_cache.conf
@@ -1,98 +1,92 @@
 ## FastCGI Cache Rules.
 # Designed to be included in any server {} block.
 
-## Default FastCGI Cache Rules.
-# Ref: http://rtcamp.com/wordpress-nginx/tutorials/single-site/fastcgi-cache-with-purging/
-# Ref: https://gist.github.com/magnetikonline/10450786
-
-set $skip_cache 0;
+# Set caching conditions.
+#set $skip_cache 0;
 
 # WP Supercache related stuff.
 #set $cache_uri $request_uri;
 
 # POST requests and urls with a query string should always go to PHP.
-if ($request_method = POST) {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
-}
+#if ($request_method = POST) {
+#    set $skip_cache 1;
+#    set $cache_uri "null cache";
+#}
 
+# Skip caching if query string not empty.
 if ($query_string != "") {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
+    set $skip_cache 1;
+    set $cache_uri "null cache";
 }
 
+# Skip caching for custom header request.
 if ($http_x_custom_header) {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
-}
-
-# Skip cache for uris containing the following segments.
-if ($request_uri ~* "(apc.php|(mem|op)cache.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
-}
-
-# DO NOT CACHE Search Engine Bot crawler.
-if ($http_user_agent ~ "\b(Googlebot|Yahoo|bingbot|MSNBot|YandexBot|Baiduspider|Alexabot|AhrefsBot)\b") {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
-}
-
-# Skip cache on admin pages.
-if ($request_uri ~* "(/account/*|/admin/*|/backend/*|/dashboard/*)") {
     set $skip_cache 1;
-	#set $cache_uri "null cache";
+    set $cache_uri "null cache";
 }
 
-# Skip cache for logged in cookies, 
-# you can customize this rule according to your cookie setting.
-if ($http_cookie ~ "users_login_cookie") {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
-}
-
-## WordPress Cache Rules ##
-
-# Skip cache for uris containing the following segments.
-if ($request_uri ~* "(/wp-admin|/xmlrpc.php|wp-*.php|/feed/|index.php|upgrade.php|update-core.php|memcache.php|apc.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
-}
-
-# Skip cache for logged in users or recent commenters.
-if ($http_cookie ~* "(comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in)") {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
-}
-
-# Skip cache on WooCommerce pages.
-if ($request_uri ~* "(/addons.*|/basket.*|/cart.*|/checkout.*|/my-account.*|/shop.*)") {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
-}
-
-# Skip cache for WooCommerce query string.
-if ($arg_add-to-cart != "") {
+# Skip caching for Search Engine Bot crawler.
+if ($http_user_agent ~* "baiduspider|(ahref|alexa|bing|google|msn|yandex)bot|yahoo") {
     set $skip_cache 1;
-	#set $cache_uri "null cache";
+    set $cache_uri "null cache";
 }
 
-# Skip cache when WooCommerce cart is not empty.
-if ($cookie_woocommerce_items_in_cart != "0") {
-	set $skip_cache 1;
-	#set $cache_uri "null cache";
+# Skip caching for uris containing the following segments.
+if ($request_uri ~* "apc.php|(mem|op)cache.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml") {
+    set $skip_cache 1;
+    set $cache_uri "null cache";
 }
 
+# Skip caching on admin pages.
+if ($request_uri ~* "^(/account/*|/admin/*|/backend/*|/dashboard/*)") {
+    set $skip_cache 1;
+    set $cache_uri "null cache";
+}
+
+## WordPress-related Cache Rules ##
+
+## Skip caching for uris containing the following segments.
+if ($request_uri ~* "index.php|upgrade.php|update-core.php|/wp-admin|/xmlrpc.php|wp-*.php|/feed/|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml") {
+    set $skip_cache 1;
+    set $cache_uri "null cache";
+}
+
+# Skip caching on WooCommerce pages.
+if ($request_uri ~* "^(/addons.*|/basket.*|/cart.*|/checkout.*|/my-account.*|/shop.*)") {
+    set $skip_cache 1;
+    set $cache_uri "null cache";
+}
+
+# Skip caching for logged in users or recent commenters.
+if ($http_cookie ~* "(comment_author|wp-postpass|wordpress_no_cache|wordpress_logged_in|users_login_cookie|wordpress_[a-f0-9]+)") {
+    set $skip_cache 1;
+    set $cache_uri "null cache";
+}
+
+# Skip caching for WooCommerce query string.
+if ($arg_add-to-cart ~ "[0-9]+") {
+    set $skip_cache 1;
+    set $cache_uri "null cache";
+}
+
+# Skip caching when WooCommerce cart is not empty (cookie set to 1).
+if ($cookie_woocommerce_items_in_cart = "1" ) {
+    set $skip_cache 1;
+    set $cache_uri "null cache";
+}
 
 ## Purging FastCGI cache ##
 
+# Purge uri.
 location ~ /purge(/.*) {
-	deny all;
-	allow 127.0.0.1;
+    allow 127.0.0.1;
+    deny all;
     access_log off;
-	log_not_found off;
-    fastcgi_cache_purge FASTCGICACHE "$scheme$request_method$host$request_uri";
-    return 301 $scheme://$server_name;
+    log_not_found off;
+
+    fastcgi_cache_purge FASTCGICACHE "$scheme$request_method$host$1";
+
+    #return 301 $scheme://$host$uri;
 }
 
 ## You may add your own FastCGI cache rules here...
diff --git a/etc/nginx/vhost/site_wordpress-bwps.conf b/etc/nginx/vhost/site_wordpress-bwps.conf
index cdcd2f8..0d4fcbd 100644
--- a/etc/nginx/vhost/site_wordpress-bwps.conf
+++ b/etc/nginx/vhost/site_wordpress-bwps.conf
@@ -1,9 +1,11 @@
 # BEGIN Better WP Security
-location ~ /\.ht { deny all; }
-location ~ wp-config.php { deny all; }
-location ~ readme.html { deny all; }
-location ~ readme.txt { deny all; }
-location ~ /install.php { deny all; }
+
+# COMMENTED as restrictions already handled by default LEMPer configuration.
+#location ~ /\.ht { deny all; }
+#location ~ wp-config.php { deny all; }
+#location ~ readme.html { deny all; }
+#location ~ readme.txt { deny all; }
+#location ~ /install.php { deny all; }
 
 set $susquery 0;
 set $rule_2 0;
@@ -12,7 +14,7 @@ set $rule_3 0;
 rewrite ^wp-includes/(.*).php /not_found last;
 rewrite ^/wp-admin/includes(.*)$ /not_found last;
 
-if ($request_method ~* "^(TRACE|DELETE|TRACK)"){ return 403; }
+if ($request_method ~* "^(TRACE|DELETE|TRACK)") { return 403; }
 
 location /wp-comments-post.php {
     valid_referers jetpack.wordpress.com/jetpack-comment/ $server_name;
diff --git a/etc/nginx/vhost/site_wordpress-ms.conf b/etc/nginx/vhost/site_wordpress-ms.conf
index d037636..ad567ad 100644
--- a/etc/nginx/vhost/site_wordpress-ms.conf
+++ b/etc/nginx/vhost/site_wordpress-ms.conf
@@ -1,33 +1,31 @@
 ## WordPress Multisite rules.
 # Designed to be included in any server {} block.
 
-# We're utilizing the Wordpress Singlesite configuration in site_wordpress.conf, 
+# We're utilizing the Wordpress single-site configuration from site_wordpress.conf, 
 # since the basic rules & directives is the same.
 include /etc/nginx/vhost/site_wordpress.conf;
 
-## Below the Multisite specific stuff.
-
 # Directive to avoid php readfile() for WordPress Multisite.
 # The $root_path variable must be predefined in your vhost config file, use 'set' inside server{} block or 'map' before server{} block.
 location ^~ /blogs.dir {
-	internal;
-	alias	$root_path/wp-content/blogs.dir;
-	access_log off;
-	log_not_found off;
-	expires max;
+    internal;
+    alias $root_path/wp-content/blogs.dir;
+    access_log off;
+    log_not_found off;
+    expires max;
 }
 
 # Directives to send expires headers for WordPress files.
 location ~ ^/[_0-9a-zA-Z-]+/files/(.*)$ {
-        try_files /wp-content/blogs.dir/$blogid/files/$2 /wp-includes/ms-files.php?file=$2 ;
-        access_log off;
-        log_not_found off;
-        expires max;
+    try_files /wp-content/blogs.dir/$blogid/files/$2 /wp-includes/ms-files.php?file=$2 ;
+    access_log off;
+    log_not_found off;
+    expires max;
 }
 
 # Rewrite multisite '.../wp-.*' and '.../*.php'.
 if (!-e $request_filename) {
-        rewrite /wp-admin$ $scheme://$host$uri/ permanent;
-        rewrite ^/[_0-9a-zA-Z-]+(/wp-.*) $1 last;
-        rewrite ^/[_0-9a-zA-Z-]+(/.*\.php)$ $1 last;
+    rewrite /wp-admin$ $scheme://$host$uri/ permanent;
+    rewrite ^/[_0-9a-zA-Z-]+(/wp-.*) $1 last;
+    rewrite ^/[_0-9a-zA-Z-]+(/.*\.php)$ $1 last;
 }
diff --git a/etc/nginx/vhost/site_wordpress-w3tc.conf b/etc/nginx/vhost/site_wordpress-w3tc.conf
index 52bd6eb..a9e57e6 100644
--- a/etc/nginx/vhost/site_wordpress-w3tc.conf
+++ b/etc/nginx/vhost/site_wordpress-w3tc.conf
@@ -4,11 +4,13 @@ location ~ /wp-content/cache/minify.*\.js$ {
     default_type application/x-javascript;
     add_header Vary "Accept-Encoding";
 }
+
 location ~ /wp-content/cache/minify.*\.css$ {
     types {}
     default_type text/css;
     add_header Vary "Accept-Encoding";
 }
+
 location ~ /wp-content/cache/minify.*js\.gzip$ {
     gzip off;
     types {}
@@ -16,6 +18,7 @@ location ~ /wp-content/cache/minify.*js\.gzip$ {
     add_header Vary "Accept-Encoding";
     add_header Content-Encoding gzip;
 }
+
 location ~ /wp-content/cache/minify.*css\.gzip$ {
     gzip off;
     types {}
@@ -26,13 +29,14 @@ location ~ /wp-content/cache/minify.*css\.gzip$ {
 # END W3TC Minify cache
 
 # BEGIN W3TC Browser Cache
-gzip on;
-gzip_types text/css text/x-component application/x-javascript application/javascript text/javascript text/x-js text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon;
+# COMMENTED as Gzip is enabled by default and managed directly from LEMPer cli.
+#gzip on;
+#gzip_types text/css text/x-component application/x-javascript application/javascript text/javascript text/x-js text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon;
 # END W3TC Browser Cache
 
 # BEGIN W3TC CDN
 location ~ \.(ttf|ttc|otf|eot|woff|font.css)$ {
-   add_header Access-Control-Allow-Origin "*";
+    add_header Access-Control-Allow-Origin "*";
 }
 # END W3TC CDN
 
diff --git a/etc/nginx/vhost/site_wordpress-wpsc.conf b/etc/nginx/vhost/site_wordpress-wpsc.conf
index 8889638..f19f0a6 100644
--- a/etc/nginx/vhost/site_wordpress-wpsc.conf
+++ b/etc/nginx/vhost/site_wordpress-wpsc.conf
@@ -1,30 +1,33 @@
-# WP Super Cache rules.
+## WP + Super Cache plugin rules.
+# Designed to be included in any server {} block.
 
 # START MOBILE
-# Mobile browsers section to server them non-cached version. COMMENTED by default as most modern wordpress themes including twenty-eleven are responsive. Uncomment config lines in this section if you want to use a plugin like WP-Touch
-# if ($http_x_wap_profile) {
-#        set $cache_uri 'null cache';
+# Mobile browsers section to server them non-cached version. 
+# COMMENTED by default as most modern wordpress themes including twenty-eleven are responsive. 
+# Uncomment config lines in this section if you want to use a plugin like WP-Touch.
+#if ($http_x_wap_profile) {
+#    set $cache_uri 'null cache';
 #}
 
 #if ($http_profile) {
-#        set $cache_uri 'null cache';
+#    set $cache_uri 'null cache';
 #}
 
 #if ($http_user_agent ~* (2.0\ MMP|240x320|400X240|AvantGo|BlackBerry|Blazer|Cellphone|Danger|DoCoMo|Elaine/3.0|EudoraWeb|Googlebot-Mobile|hiptop|IEMobile|KYOCERA/WX310K|LG/U990|MIDP-2.|MMEF20|MOT-V|NetFront|Newt|Nintendo\ Wii|Nitro|Nokia|Opera\ Mini|Palm|PlayStation\ Portable|portalmmm|Proxinet|ProxiNet|SHARP-TQ-GX10|SHG-i900|Small|SonyEricsson|Symbian\ OS|SymbianOS|TS21i-10|UP.Browser|UP.Link|webOS|Windows\ CE|WinWAP|YahooSeeker/M1A1-R2D2|iPhone|iPod|Android|BlackBerry9530|LG-TU915\ Obigo|LGE\ VX|webOS|Nokia5800)) {
- #       set $cache_uri 'null cache';
+#    set $cache_uri 'null cache';
 #}
 
 #if ($http_user_agent ~* (w3c\ |w3c-|acs-|alav|alca|amoi|audi|avan|benq|bird|blac|blaz|brew|cell|cldc|cmd-|dang|doco|eric|hipt|htc_|inno|ipaq|ipod|jigs|kddi|keji|leno|lg-c|lg-d|lg-g|lge-|lg/u|maui|maxo|midp|mits|mmef|mobi|mot-|moto|mwbp|nec-|newt|noki|palm|pana|pant|phil|play|port|prox|qwap|sage|sams|sany|sch-|sec-|send|seri|sgh-|shar|sie-|siem|smal|smar|sony|sph-|symb|t-mo|teli|tim-|tosh|tsm-|upg1|upsi|vk-v|voda|wap-|wapa|wapi|wapp|wapr|webc|winw|winw|xda\ |xda-)) {
-  #      set $cache_uri 'null cache';
+#    set $cache_uri 'null cache';
 #}
 #END MOBILE
 
 # Use cached or actual file if they exists, otherwise pass request to WordPress
 #location / {
-#	try_files /wp-content/cache/supercache/$http_host/$cache_uri/index.html $uri $uri/ /index.php?$args;
+#    try_files /wp-content/cache/supercache/$http_host/$cache_uri/index.html $uri $uri/ /index.php?$args;
 #}
 
 # On WP Super Cache newer version, try this one
 location / {
-	try_files /wp-content/cache/supercache/$http_host/$scheme$cache_uri/index.html $uri $uri/ /index.php?$args;
+    try_files /wp-content/cache/supercache/$http_host/$scheme$cache_uri/index.html $uri $uri/ /index.php?$args;
 }