.htaccess boilerplate including expire headers, mod pagespeed, cache control headers, Gzip, Deflate #htaccess #seo

.htaccess

# BEGIN Expire headers
AddDefaultCharset UTF-8
<IfModule mod_expires.c>
  ExpiresActive On
  ExpiresDefault "access plus 7200 seconds"
  ExpiresByType image/x-icon "access plus 2592000 seconds"
  ExpiresByType image/jpeg "access plus 2592000 seconds"
  ExpiresByType image/png "access plus 2592000 seconds"
  ExpiresByType image/gif "access plus 2592000 seconds"
  ExpiresByType application/x-shockwave-flash "access plus 2592000 seconds"
  ExpiresByType text/css "access plus 2592000 seconds"
  ExpiresByType text/javascript "access plus 2592000 seconds"
  ExpiresByType application/x-javascript "access plus 2592000 seconds"
  ExpiresByType text/html "access plus 7200 seconds"
  ExpiresByType application/xhtml+xml "access plus 7200 seconds"
  ExpiresByType font/ttf "access plus 1 month"
  ExpiresByType font/woff "access plus 1 month"
  ExpiresByType image/svg+xml "access plus 1 month"
</IfModule>
# END Expire headers

# BEGIN Cache-Control Headers
<IfModule mod_headers.c>
  <FilesMatch "\\.(ico|jpe?g|png|gif|swf|gz)$">
    Header set Cache-Control "max-age=2592000, public"
  </FilesMatch>
  <FilesMatch "\\.(css)$">
    Header set Cache-Control "max-age=2592000, public"
  </FilesMatch>
  <FilesMatch "\\.(js)$">
    Header set Cache-Control "max-age=2592000, private"
  </FilesMatch>
<filesMatch "\\.(html|htm)$">
Header set Cache-Control "max-age=7200, public"
</filesMatch>
# Disable caching for scripts and other dynamic files
<FilesMatch "\.(pl|php|cgi|spl|scgi|fcgi)$">
Header unset Cache-Control
</FilesMatch>
</IfModule>

# END Cache-Control Headers

#It's worth commenting that cache-control is what all browsers will use, 
#but it's useful to specify both headers (expires and cache control) just
#in case there are old proxies in the way.
#http://stackoverflow.com/questions/5799906/what-s-the-difference-between-expires-and-cache-control-headers

#Add Gzip
<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>

<ifmodule mod_deflate.c>
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
AddOutputFilterByType DEFLATE font/opentype font/ttf font/eot font/otf
</ifmodule>
#END Mod Deflate

# Mod PageSpeed
<IfModule pagespeed_module>
    ModPagespeed on
    ModPagespeedEnableFilters remove_comments,rewrite_javascript,rewrite_css,rewrite_images
    ModPagespeedJpegRecompressionQuality -1
</IfModule>

To enforce https / SSL use:

RewriteEngine On
RewriteCond %{HTTPS} off
# First rewrite to HTTPS:
RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]