平成30/ 2018-12-19 21:50
google/ Leverage browser caching 対応

この最適化、htaccessでいけるとのこと。

.htaccess:

<FilesMatch "\.(ico|jpg|jpeg|png|gif|js|css|swf|pdf|flv|mp3)$">
<IfModule mod_expires.c>
ExpiresActive on
ExpiresDefault "access plus 14 days"
Header set Cache-Control "public"
</IfModule>
</FilesMatch>
<FilesMatch "\.(html|htm|xml|txt|xsl)$">
Header set Cache-Control "max-age=7200, must-revalidate"
</FilesMatch>


( Thanks. )
How to Leverage browser caching in Apache
http://howtounix.info/howto/How-to-Leverage-browser-caching

[Web] Google Page Speedでサイトを高速化(1)
http://webcache.googleusercontent.com/search?q=cache:bjMoj3iGWiMJ:screw-axis.com/2009/06/06/web-google-page-speed%E3%81%A7%E3%82%B5%E3%82%A4%E3%83%88%E3%82%92%E9%AB%98%E9%80%9F%E5%8C%961/+&cd=1&hl=ja&ct=clnk&gl=jp&client=firefox-a