[WordPress] Code from our blog post Speed Up Your Website using Caching and .htaccess - http://www.limecanvas.com/speed-up-your-website-using-caching-and-htaccess/

code-snippet-1.txt

<ifModule mod_expires.c>
ExpiresActive On
ExpiresDefault A300

# Expires after 1 month
ExpiresByType image/gif A2592000
ExpiresByType image/png A2592000
ExpiresByType image/jpg A2592000
ExpiresByType image/x-icon A2592000
ExpiresByType application/pdf A2592000
ExpiresByType application/x-javascript A2592000
ExpiresByType text/plain A2592000

# Expires after 1 day
ExpiresByType text/css A86400
</ifModule>

code-snippet-2.txt

<ifModule mod_headers.c>
ExpiresActive On

# Expires after 1 month
<filesMatch ".(gif|png|jpg|jpeg|ico|pdf|js|htm|html|txt)$">
Header set Cache-Control "max-age=2592000"
</filesMatch>

# Expires after 1 day
<filesMatch ".(css)$">
Header set Cache-Control "max-age=86400"
</filesMatch>
</ifModule>

code-snippet-3.txt

<ifModule mod_headers.c>
# Turn on Expires and set default expires to 3 days
ExpiresActive On
ExpiresDefault A259200

# Set up caching on media files for 1 month
<filesMatch ".(ico|gif|jpg|jpeg|png|flv|pdf|swf|mov|mp3|wmv|ppt)$">
ExpiresDefault A2419200
Header append Cache-Control "public"
</filesMatch>

# Set up 2 Hour caching on commonly updated files
<filesMatch ".(xml|txt|html|js|css)$">
ExpiresDefault A7200
Header append Cache-Control "private, must-revalidate"
</filesMatch>

# Force no caching for dynamic files
<filesMatch ".(php|cgi|pl|htm)$">
ExpiresDefault A0
Header set Cache-Control "no-store, no-cache, must-revalidate, max-age=0"
Header set Pragma "no-cache"
</filesMatch>
</ifModule>