1. Aktifkan modul untuk gzip :

a2enmod deflate

 2. Tambahkan di apache :

<Directory /var/www/html/>
   <IfModule mod_mime.c>
	AddType application/x-javascript .js
	AddType text/css .css
   </IfModule>
   <IfModule mod_deflate.c>
	AddOutputFilterByType DEFLATE text/css application/x-javascript text/x-component text/html text/plain text/xml application/javascript
	<IfModule mod_setenvif.c>
		BrowserMatch ^Mozilla/4 gzip-only-text/html
		BrowserMatch ^Mozilla/4.0[678] no-gzip
		BrowserMatch bMSIE !no-gzip !gzip-only-text/html
	</IfModule>
    </IfModule>
</Directory>