mod_expires
[Apache]
キャッシュコントロール
コンテンツ更新を確認させないので、負荷軽減
# vi /etc/httpd/conf/httpd.conf
ExpiresActive On
#ExpiresDefault "access plus 1 year"
ExpiresByType image/gif "access plus 5 minutes"
ExpiresByType image/jpeg "access plus 5 minutes"
ExpiresByType application/x-shockwave-flash "access plus 30 minutes"
#ExpiresByType text/html "access plus 15 minutes"
ExpiresByType application/rss+xml "access plus 30 minutes"
ExpiresByType application/x-javascript "access plus 30 minutes"
ExpiresByType text/css "access plus 30 minutes"