.htaccess

# compress text, html, javascript, css, xml:
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

##Add caching
# year
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|swf|mp3|mp4)$">
Header set Cache-Control "public"
Header set Expires "Thu, 15 Apr 2050 20:00:00 GMT"
Header unset Last-Modified
</FilesMatch>
#sensitive files - 1 second
<FilesMatch "\.(html|htm|xml|txt|xsl)$">
Header set Cache-Control "max-age=1, must-revalidate"
</FilesMatch>
#css/js
<FilesMatch "\.(js|css)$">
SetOutputFilter DEFLATE
Header set Expires "Thu, 15 Apr 2050 20:00:00 GMT"
</FilesMatch>

# DirectoryIndex: sets the file that Apache will serve if a directory is requested.
DirectoryIndex index.html index.php /index.php

# AddEncoding allows you to have certain browsers uncompress information on the fly. Note: Not all browsers support this.
AddEncoding x-compress .Z
AddEncoding x-gzip .gz .tgz