.htaccess

<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE image/jpg
AddOutputFilterByType DEFLATE image/png
AddOutputFilterByType DEFLATE image/gif
AddOutputFilterByType DEFLATE image/jpeg
AddOutputFilterByType DEFLATE image/svg+xml
</IfModule>