.htaccess

# Enable GZIP
<ifmodule mod_deflate.c>
  AddOutputFilterByType DEFLATE text/text text/html text/plain text/xml text/css application/x-javascript application/javascript
</ifmodule>
# END GZIP

<IfModule mod_filter.c>
  AddOutputFilterByType DEFLATE "application/atom+xml" \
                                "application/javascript" \
                                "application/json" \
                                "application/ld+json" \
                                "application/manifest+json" \
                                "application/rdf+xml" \
                                "application/rss+xml" \
                                "application/schema+json" \
                                "application/vnd.geo+json" \
                                "application/vnd.ms-fontobject" \
                                "application/x-font-ttf" \
                                "application/x-javascript" \
                                "application/x-web-app-manifest+json" \
                                "application/xhtml+xml" \
                                "application/xml" \
                                "font/eot" \
                                "font/opentype" \
                                "image/bmp" \
                                "image/svg+xml" \
                                "image/vnd.microsoft.icon" \
                                "image/x-icon" \
                                "text/cache-manifest" \
                                "text/css" \
                                "text/html" \
                                "text/javascript" \
                                "text/plain" \
                                "text/vcard" \
                                "text/vnd.rim.location.xloc" \
                                "text/vtt" \
                                "text/x-component" \
                                "text/x-cross-domain-policy" \
                                "text/xml"
</IfModule>


# Force the latest IE version, in various cases when it may fall back to IE7 mode
# github.com/rails/rails/commit/123eb25#commitcomment-118920
# Use ChromeFrame if it's installed for a better experience for the poor IE folk
<IfModule mod_setenvif.c>
  <IfModule mod_headers.c>
    BrowserMatch MSIE ie
    Header set X-UA-Compatible "IE=Edge,chrome=1" env=ie
  </IfModule>
</IfModule>


<IfModule mod_headers.c>
  # Because X-UA-Compatible isn't sent to non-IE (to save header bytes),
  # We need to inform proxies that content changes based on UA
  Header append Vary User-Agent
  # Ensure proxy caching, since gzip is accept-encoding dependent.
  Header append Vary Accept-Encoding

  Header unset Pragma

  # Cache specified files for 31 days
  <filesmatch "\.(ico|flv|jpg|jpeg|png|gif|css|swf)$">
    Header set Cache-Control "max-age=2678400, public"
  </filesmatch>
  # Cache HTML files for a couple hours
  <filesmatch "\.(html|htm)$">
    Header set Cache-Control "max-age=7200, private, must-revalidate"
  </filesmatch>
  # Cache PDFs for a day
  <filesmatch "\.(pdf)$">
    Header set Cache-Control "max-age=86400, public"
  </filesmatch>
  # Cache Javascripts for 31 days
  <filesmatch "\.(js)$">
    Header set Cache-Control "max-age=2678400, private"
  </filesmatch>
</IfModule>

# video
AddType video/ogg  ogg ogv
AddType video/mp4  mp4
AddType video/webm webm

# Proper svg serving. Required for svg webfonts on iPad
# twitter.com/FontSquirrel/status/14855840545
AddType     image/svg+xml             svg svgz
AddEncoding gzip                      svgz

# webfonts
AddType application/vnd.ms-fontobject eot
AddType font/truetype                 ttf
AddType font/opentype                 otf
AddType font/woff                     woff

AddType text/cache-manifest           manifest
AddType text/x-component              htc


# use utf-8 encoding for anything served text/plain or text/html
AddDefaultCharset utf-8
# force utf-8 for a number of file formats
AddCharset utf-8 .html .css .js .xml .json .rss

# We don't need to tell everyone we're apache.
ServerSignature Off