Asking browsers to cache as aggressively as possible

Question

This is about a web app that serves images. Since the same request will always return the same image, I want the accessing browsers to cache the images as aggressively as po

Answer 1

Try .htaccess like

  mod_gzip_on Yes
  mod_gzip_dechunk Yes
  mod_gzip_item_include file \.(html?|txt|css|js|php|pl)$
  mod_gzip_item_include handler ^cgi-script$
  mod_gzip_item_include mime ^text/.*
  mod_gzip_item_include mime ^application/x-javascript.*
  mod_gzip_item_exclude mime ^image/.*
  mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*



AddType application/x-compress .Z
AddType application/x-gzip .gz .tgz
AddType application/x-httpd-php .php
AddType application/x-httpd-php .php3
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-javascript



  ExpiresActive On
  ExpiresDefault "access plus 1 seconds" 
  ExpiresByType text/html "access plus 1 seconds" 
  ExpiresByType image/gif "access plus 2592000 seconds" 
  ExpiresByType image/jpeg "access plus 2592000 seconds" 
  ExpiresByType image/png "access plus 2592000 seconds" 
  ExpiresByType text/css "access plus 604800 seconds" 
  ExpiresByType text/javascript "access plus 216000 seconds" 
  ExpiresByType application/x-javascript "access plus 216000 seconds" 



  
    Header set Cache-Control "max-age=2592000, public" 
  
  
    Header set Cache-Control "max-age=604800, public" 
  
  
    Header set Cache-Control "max-age=216000, private" 
  
  
    Header set Cache-Control "max-age=216000, public, must-revalidate" 
  
  
    Header set Cache-Control "max-age=1, private, must-revalidate"