How to leverage browser caching?

The most important cache mechanism for page speed is browser caching. Most of the static files that are used on web pages can be saved on the computer of your visitor for future access.

To enable Browser Caching, add the following lines inside your website’s .htaccess file:

<IfModule mod_expires.c>
    ExpiresActive on
    ExpiresDefault                                      "access plus 6 months"
  # CSS
    ExpiresByType text/css                              "access plus 1 year"
  # HTML components (HTCs)
    ExpiresByType text/x-component                      "access plus 0 seconds"
  # HTML
    ExpiresByType text/html                             "access plus 1 minute"
  # JavaScript
    ExpiresByType application/javascript                "access plus 1 year"
    ExpiresByType application/x-javascript              "access plus 1 year"
  # Manifest files
    ExpiresByType application/x-web-app-manifest+json   "access plus 0 seconds"
    ExpiresByType text/cache-manifest                   "access plus 0 seconds"
  # Media
    ExpiresByType audio/ogg                             "access plus 1 year"
    ExpiresByType image/gif                             "access plus 1 year"
    ExpiresByType image/jpg                             "access plus 1 year"
    ExpiresByType image/jpeg                            "access plus 1 year"
    ExpiresByType image/png                             "access plus 1 year"
    ExpiresByType image/svg                             "access plus 1 year"
    ExpiresByType image/svg+xml                         "access plus 1 year"
    ExpiresByType video/mp4                             "access plus 1 year"
    ExpiresByType video/ogg                             "access plus 1 year"
    ExpiresByType video/webm                            "access plus 1 year"
    ExpiresByType image/x-icon                          "access plus 1 year"
    ExpiresByType application/pdf                       "access plus 1 year"
    ExpiresByType application/x-shockwave-flash         "access plus 1 year"
  # XML
    ExpiresByType text/xml                              "access plus 0 seconds"
    ExpiresByType application/xml                       "access plus 0 seconds"
  # Web feeds
    ExpiresByType application/atom+xml                  "access plus 1 hour"
    ExpiresByType application/rss+xml                   "access plus 1 hour"
  # Web fonts
    ExpiresByType application/font-woff                 "access plus 1 year"
    ExpiresByType application/font-woff2                "access plus 1 year"
    ExpiresByType application/vnd.ms-fontobject         "access plus 1 year"
    ExpiresByType application/x-font-ttf                "access plus 1 year"
    ExpiresByType font/opentype                         "access plus 1 year"
</IfModule>