wordpress optimization

// wp-inclucdes/fucntions.php
// Remove query string from static files
function remove_cssjs_ver( $src ) {
if( strpos( $src, '?ver=' ) )
$src = remove_query_arg( 'ver', $src );
return $src;
}
add_filter( 'style_loader_src', 'remove_cssjs_ver', 10, 2 );
add_filter( 'script_loader_src', 'remove_cssjs_ver', 10, 2 );


# fix "Specify a Vary: Accept-Encoding Header"
# <IfModule mod_headers.c>
#   <FilesMatch ".(js|css|xml|gz|html)$">
#     Header append Vary: Accept-Encoding
#   </FilesMatch>
# </IfModule>



# Enable Compression
# <IfModule mod_deflate.c>
#   AddOutputFilterByType DEFLATE application/javascript
#   AddOutputFilterByType DEFLATE application/rss+xml
#   AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
#   AddOutputFilterByType DEFLATE application/x-font
#   AddOutputFilterByType DEFLATE application/x-font-opentype
#   AddOutputFilterByType DEFLATE application/x-font-otf
#   AddOutputFilterByType DEFLATE application/x-font-truetype
#   AddOutputFilterByType DEFLATE application/x-font-ttf
#   AddOutputFilterByType DEFLATE application/x-javascript
#   AddOutputFilterByType DEFLATE application/xhtml+xml
#   AddOutputFilterByType DEFLATE application/xml
#   AddOutputFilterByType DEFLATE font/opentype
#   AddOutputFilterByType DEFLATE font/otf
#   AddOutputFilterByType DEFLATE font/ttf
#   AddOutputFilterByType DEFLATE image/svg+xml
#   AddOutputFilterByType DEFLATE image/x-icon
#   AddOutputFilterByType DEFLATE text/css
#   AddOutputFilterByType DEFLATE text/html
#   AddOutputFilterByType DEFLATE text/javascript
#   AddOutputFilterByType DEFLATE text/plain
# </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>
 
# Leverage Browser Caching
<IfModule mod_expires.c>
  ExpiresActive On
  ExpiresByType image/jpg "access 1 year"
  ExpiresByType image/jpeg "access 1 year"
  ExpiresByType image/gif "access 1 year"
  ExpiresByType image/png "access 1 year"
  ExpiresByType text/css "access 1 month"
  ExpiresByType text/html "access 1 month"
  ExpiresByType application/pdf "access 1 month"
  ExpiresByType text/x-javascript "access 1 month"
  ExpiresByType application/x-shockwave-flash "access 1 month"
  ExpiresByType image/x-icon "access 1 year"
  ExpiresDefault "access 1 month"
</IfModule>


********proved********
# leverage browser caching
<filesMatch ".(ico|pdf|flv|jpg|jpeg|png|gif|svg|js|css|swf)$">
Header set Cache-Control "max-age=84600, public"
</filesMatch>