What to do here? I have a huge list of files that Google Speed Page said to "Leverage Browser Caching".. but I don't know how? Do I mess or change the Apache config file (below) or do I put something in my .htaccess page?
<IfModule mod_proxy.c>
ProxyRequests Off
CacheRoot "/var/run/proxy"
CacheSize 1024
CacheGcInterval 24
#CacheMaxExpire 24
#CacheLastModifiedFactor 0.1
#CacheDefaultExpire 1
#NoCache a_domain.com another_domain.edu joes.garage_sale.com
<Directory "disabled_proxy">
Allow from example.com
Deny from all
Order Deny,Allow
</Directory>
</IfModule>
##
#### mod_expires is configured so that all static files but images
#### expire after 60 seconds. Any response that has a life span of more
#### than 5 seconds (see webperfcache.conf) will be cached by webperfcache.
#### Make sure your CGIs return a "Cache-Control: no-cache" header if you
#### elect to make your dynamically generated HTML pages not cache-able.
#### If all your HTML pages are static you may also increase ExpiresDefault.
<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault A60
ExpiresByType image/bmp A3600
ExpiresByType image/gif A3600
ExpiresByType image/ief A3600
ExpiresByType image/jpeg A3600
ExpiresByType image/png A3600
ExpiresByType image/tiff A3600
ExpiresByType image/x-cmu-raster A3600
ExpiresByType image/x-portable-anymap A3600
ExpiresByType image/x-portable-bitmap A3600
ExpiresByType image/x-portable-graymap A3600
ExpiresByType image/x-portable-pixmap A3600
ExpiresByType image/x-rgb A3600
ExpiresByType image/x-xbitmap A3600
ExpiresByType image/x-xpixmap A3600
ExpiresByType image/x-xwindowdump A3600
ExpiresByType audio/basic A3600
ExpiresByType audio/midi A3600
ExpiresByType audio/mpeg A3600
ExpiresByType audio/x-aiff A3600
ExpiresByType audio/x-pn-realaudio A3600
ExpiresByType audio/x-pn-realaudio-plugin A3600
ExpiresByType audio/x-realaudio A3600
ExpiresByType audio/x-wav A3600
ExpiresByType video/mpeg A3600
ExpiresByType video/quicktime A3600
ExpiresByType video/x-msvideo A3600
ExpiresByType video/x-sgi-movie A3600
</IfModule>
I took my chance to provide full .htaccess
code to pass on Google PageSpeed Insight:
# Enable Compression <IfModule mod_deflate.c> AddOutputFilterByType DEFLATE application/javascript AddOutputFilterByType DEFLATE application/rss+xml AddOutputFilterByType DEFLATE application/vnd.ms-fontobject AddOutputFilterByType DEFLATE application/x-font AddOutputFilterByType DEFLATE application/x-font-opentype AddOutputFilterByType DEFLATE application/x-font-otf AddOutputFilterByType DEFLATE application/x-font-truetype AddOutputFilterByType DEFLATE application/x-font-ttf AddOutputFilterByType DEFLATE application/x-javascript AddOutputFilterByType DEFLATE application/xhtml+xml AddOutputFilterByType DEFLATE application/xml AddOutputFilterByType DEFLATE font/opentype AddOutputFilterByType DEFLATE font/otf AddOutputFilterByType DEFLATE font/ttf AddOutputFilterByType DEFLATE image/svg+xml AddOutputFilterByType DEFLATE image/x-icon AddOutputFilterByType DEFLATE text/css AddOutputFilterByType DEFLATE text/html AddOutputFilterByType DEFLATE text/javascript AddOutputFilterByType DEFLATE text/plain </IfModule> <IfModule mod_gzip.c> 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.* </IfModule> # Leverage Browser Caching <IfModule mod_expires.c> ExpiresActive On ExpiresByType image/jpg "access 1 year" ExpiresByType image/jpeg "access 1 year" ExpiresByType image/gif "access 1 year" ExpiresByType image/png "access 1 year" ExpiresByType text/css "access 1 month" ExpiresByType text/html "access 1 month" ExpiresByType application/pdf "access 1 month" ExpiresByType text/x-javascript "access 1 month" ExpiresByType application/x-shockwave-flash "access 1 month" ExpiresByType image/x-icon "access 1 year" ExpiresDefault "access 1 month" </IfModule> <IfModule mod_headers.c> <filesmatch "\.(ico|flv|jpg|jpeg|png|gif|css|swf)$"> Header set Cache-Control "max-age=2678400, public" </filesmatch> <filesmatch "\.(html|htm)$"> Header set Cache-Control "max-age=7200, private, must-revalidate" </filesmatch> <filesmatch "\.(pdf)$"> Header set Cache-Control "max-age=86400, public" </filesmatch> <filesmatch "\.(js)$"> Header set Cache-Control "max-age=2678400, private" </filesmatch> </IfModule>
There is also some configurations for various web servers see here.
Hope this would help to get the 100/100 score.