There are codes which You should copy and paste to .htaccess in root folder (Where index.php is located).

# Enable GZIP
<ifmodule mod_deflate.c>
AddOutputFilterByType DEFLATE text/text text/html text/plain text/xml text/css application/x-javascript application/javascript
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
</ifmodule>

# Expires Headers - 2678400s = 31 days
<ifmodule mod_expires.c>
  ExpiresActive On
  ExpiresDefault "access plus 1 seconds"
  ExpiresByType text/html "access plus 7200 seconds"
  ExpiresByType image/gif "access plus 2678400 seconds"
  ExpiresByType image/jpeg "access plus 2678400 seconds"
  ExpiresByType image/png "access plus 2678400 seconds"
  ExpiresByType text/css "access plus 518400 seconds"
  ExpiresByType text/javascript "access plus 2678400 seconds"
  ExpiresByType application/x-javascript "access plus 2678400 seconds"
</ifmodule>

# Cache Headers
<ifmodule mod_headers.c>
  # Cache specified files for 31 days
  <filesmatch "\.(ico|flv|jpg|jpeg|png|gif|css|swf)$">
  Header set Cache-Control "max-age=2678400, public"
  </filesmatch>
  # Cache HTML files for a couple hours
  <filesmatch "\.(html|htm)$">
  Header set Cache-Control "max-age=7200, private, must-revalidate"
  </filesmatch>
  # Cache PDFs for a day
  <filesmatch "\.(pdf)$">
  Header set Cache-Control "max-age=86400, public"
  </filesmatch>
  # Cache Javascripts for 31 days
  <filesmatch "\.(js)$">
  Header set Cache-Control "max-age=2678400, private"
  </filesmatch>
</ifmodule>

<IfModule mod_deflate.c>
        <IfModule mod_filter.c>
                # these are known to be safe with MSIE 6
                AddOutputFilterByType DEFLATE text/html text/plain text/xml

                # everything else may cause problems with MSIE 6
                AddOutputFilterByType DEFLATE text/css
                AddOutputFilterByType DEFLATE application/x-javascript application/javascript application/ecmascript
                AddOutputFilterByType DEFLATE application/rss+xml
                AddOutputFilterByType DEFLATE application/xml
        </IfModule>
</IfModule>

There are codes which You should copy and paste to .htaccess in root folder (Where index.php is located). ========================================================================================================= --------------------------------------------------------------------------------------------------------- #### This compressing will work only if You using apache server. #### Compressing by using this script will speed up your site 30-40%. Second this is that it will save Your bandwidth up to 50%. **Test Your site speed here:** [Google Insights](http://developers.google.com/speed/pagespeed/insights/) [Pingdom](http://tools.pingdom.com/) Apache .htaccess GZIP Compression: ---------------------------------- ```` # Enable GZIP <ifmodule mod_deflate.c> AddOutputFilterByType DEFLATE text/text text/html text/plain text/xml text/css application/x-javascript application/javascript BrowserMatch ^Mozilla/4 gzip-only-text/html BrowserMatch ^Mozilla/4\.0[678] no-gzip BrowserMatch \bMSIE !no-gzip !gzip-only-text/html </ifmodule> # Expires Headers - 2678400s = 31 days <ifmodule mod_expires.c> ExpiresActive On ExpiresDefault "access plus 1 seconds" ExpiresByType text/html "access plus 7200 seconds" ExpiresByType image/gif "access plus 2678400 seconds" ExpiresByType image/jpeg "access plus 2678400 seconds" ExpiresByType image/png "access plus 2678400 seconds" ExpiresByType text/css "access plus 518400 seconds" ExpiresByType text/javascript "access plus 2678400 seconds" ExpiresByType application/x-javascript "access plus 2678400 seconds" </ifmodule> # Cache Headers <ifmodule mod_headers.c> # Cache specified files for 31 days <filesmatch "\.(ico|flv|jpg|jpeg|png|gif|css|swf)$"> Header set Cache-Control "max-age=2678400, public" </filesmatch> # Cache HTML files for a couple hours <filesmatch "\.(html|htm)$"> Header set Cache-Control "max-age=7200, private, must-revalidate" </filesmatch> # Cache PDFs for a day <filesmatch "\.(pdf)$"> Header set Cache-Control "max-age=86400, public" </filesmatch> # Cache Javascripts for 31 days <filesmatch "\.(js)$"> Header set Cache-Control "max-age=2678400, private" </filesmatch> </ifmodule> ```` Apache deflate-compression: --------------------------- /etc/apache2/mods-enabled/deflate.conf ```` <IfModule mod_deflate.c> <IfModule mod_filter.c> # these are known to be safe with MSIE 6 AddOutputFilterByType DEFLATE text/html text/plain text/xml # everything else may cause problems with MSIE 6 AddOutputFilterByType DEFLATE text/css AddOutputFilterByType DEFLATE application/x-javascript application/javascript application/ecmascript AddOutputFilterByType DEFLATE application/rss+xml AddOutputFilterByType DEFLATE application/xml </IfModule> </IfModule> ````