WP: htaccess + gzip etc.

WP:.htaccess

# MAINTENANCE-PAGE REDIRECT
<IfModule mod_rewrite.c>
 RewriteEngine on
 RewriteCond %{REMOTE_ADDR} !^193\.158\.164\.23
 RewriteCond %{REQUEST_URI} !/underconstruction.html$ [NC]
 RewriteCond %{REQUEST_URI} !\.(jpe?g?|png|gif) [NC]
 RewriteRule .* /underconstruction.html [R=302,L]
</IfModule>

# END MAINTENANCE-PAGE REDIRECT

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

AddDefaultCharset UTF-8

<IfModule mod_deflate.c>
 AddOutputFilterByType DEFLATE text/plain
 AddOutputFilterByType DEFLATE text/html
 AddOutputFilterByType DEFLATE text/xml
 AddOutputFilterByType DEFLATE text/css
 AddOutputFilterByType DEFLATE text/javascript
 AddOutputFilterByType DEFLATE application/xml
 AddOutputFilterByType DEFLATE application/xhtml+xml
 AddOutputFilterByType DEFLATE application/rss+xml
 AddOutputFilterByType DEFLATE application/atom_xml
 AddOutputFilterByType DEFLATE application/javascript
 AddOutputFilterByType DEFLATE application/x-javascript
 AddOutputFilterByType DEFLATE application/x-shockwave-flash
</IfModule>

<IfModule mod_rewrite.c>
 RewriteEngine On
 RewriteBase /

 # forbid double slashes in all URLs
  RewriteCond %{THE_REQUEST} ^[A-Z]+\ /(([^/\ ]+/)*)/+([^\ ]*)
  RewriteRule ^ /%1%3 [L,R=301]
</IfModule>

# compress
<IfModule mod_deflate.c>
 <FilesMatch "\.(js|jpg|jpeg|gif|png|css|txt|html)$">
  ExpiresActive on
  ExpiresDefault "access plus 1 month"
  SetOutputFilter DEFLATE
 </FilesMatch>
</IfModule>

<IfModule mod_gzip.c>
 mod_gzip_on       Yes
 mod_gzip_dechunk  Yes
 mod_gzip_item_include file      \.(html?|txt|css|js|php|pl)$
 mod_gzip_item_include handler   ^cgi-script$
 mod_gzip_item_include mime      ^text/.*
 mod_gzip_item_include mime      ^application/x-javascript.*
 mod_gzip_item_exclude mime      ^image/.*
 mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
</IfModule>

# cache
<IfModule mod_expires.c>
 ExpiresActive On
 ExpiresByType text/css "access plus 1 month"
 ExpiresByType text/javascript "access plus 1 month"
 ExpiresByType text/html "access plus 1 month"
 ExpiresByType application/javascript "access plus 1 month"
 ExpiresByType application/x-javascript "access plus 1 month"
 ExpiresByType application/xhtml-xml "access plus 600 seconds"
 ExpiresByType image/gif "access plus 1 week"
 ExpiresByType image/jpeg "access plus 1 week"
 ExpiresByType image/png "access plus 1 week"
 ExpiresByType image/x-icon "access plus 1 month"
</IfModule>

<ifmodule mod_headers.c>
 <filesmatch "\\.(ico|jpe?g|png|gif|swf)$">
  Header set Cache-Control "max-age=2592000, public"
 </filesmatch>
 <filesmatch "\\.(css)$">
  Header set Cache-Control "max-age=604800, public"
 </filesmatch>
 <filesmatch "\\.(js)$">
  Header set Cache-Control "max-age=216000, private"
 </filesmatch>
 <filesmatch "\\.(x?html?|php)$">
  Header set Cache-Control "max-age=600, private, must-revalidate"
 </filesmatch>
</ifmodule>

# Turn ETags Off
<ifmodule mod_headers.c>
 Header unset ETag
 Header unset Last-Modified
</ifmodule>
FileETag None

# PROTECT wp-config.php
<files wp-config.php>
 Order deny,allow
 deny from all
</files>

# PROTECT install.php
<Files install.php>
 Order Allow,Deny
 Deny from all
 Satisfy all
</Files>

# Add gzip compression for javascript
RewriteEngine on
RewriteCond %{HTTP:Accept-Encoding} gzip
RewriteCond %{REQUEST_FILENAME}.gz -f
RewriteRule (.*)\.js$ $1\.js.gz [L]
AddType "text/javascript" .js.gz
AddEncoding gzip .gz

# Add gzip compression for css
RewriteEngine on
RewriteCond %{HTTP:Accept-Encoding} gzip
RewriteCond %{REQUEST_FILENAME}.gz -f
RewriteRule (.*)\.css$ $1\.css.gz [L]
AddType "text/javascript" .css.gz
AddEncoding gzip .gz