.htaccess

# dennyhalim.com apache performance and other optimizations
# pagespeed A # yslow B # https://raw.githubusercontent.com/dennyhalim/cfg/master/pagespeed-yslow.png
# the f is external factor, which mean you need to purchase cdn and use better cms 
# direct download this file: 
# wget https://is.gd/yslow

<IfModule mod_deflate.c>
  AddOutputFilterByType DEFLATE text/html text/css text/plain text/xml text/javascript application/javascript application/x-javascript application/x-httpd-php
</IfModule>

<IfModule mod_headers.c>
  Header set Cache-Control "max-age=1814400, public"
  Header set Expires "access plus 3 weeks" 
</IfModule>
<FilesMatch "\.(pl|php|cgi|htm|html)$"> 
  <IfModule mod_deflate.c>
    SetOutputFilter DEFLATE
  </IfModule>
  <IfModule mod_headers.c>
    Header set Cache-Control "max-age=10, public"
    Header set Expires "access plus 10 seconds" 
</IfModule>
</FilesMatch> 

#failover, if either mod_headers or mod_expires not installed, it'll still works
<IfModule mod_expires.c>
  ExpiresActive On
  ExpiresDefault "access plus 3 weeks"
  ExpiresByType text/html "access plus 10 seconds"
  ExpiresByType application/rss+xml "access plus 1 hour"
##ExpiresByType text/javascript "access plus 3 weeks"
</IfModule>

Options -Indexes

#<Limit GET POST OPTIONS PROPFIND>
# Order allow,deny
# Allow from all
#</Limit>
#<LimitExcept GET POST OPTIONS PROPFIND>
# Order deny,allow
# Deny from all
#</LimitExcept>

#additionals:
#####more control#<FilesMatch "\.(pdf|mpg|mpeg|mp3|mp4|ogv|jpg|jpeg|png|gif|ico|js|css)$"> 
#ExpiresByType text/css "access plus 3 weeks"
#ExpiresByType application/pdf "access plus 3 weeks"
#ExpiresByType application/x-shockwave-flash "access plus 3 weeks"
#ExpiresByType image/gif "access plus 7 months"
#ExpiresByType image/jpg "access plus 7 months"
#ExpiresByType image/jpeg "access plus 7 months"
#ExpiresByType image/png "access plus 7 months"
#ExpiresByType image/x-icon "access plus 7 months"

#Header merge Cache-Control "public"