.htaccess

ErrorDocument 404 /404.php

RewriteEngine On

RewriteRule ^sitemap\.xml$ sitemap.php [L]
RewriteRule ^sitemap$ sitemap.php [L]

RewriteRule ^feed.xml$ atom.xml [L]
RewriteRule ^feed.rss$ atom.xml [L]
RewriteRule ^feed$ atom.xml [L]
RewriteRule ^index.xml$ atom.xml [L]
RewriteRule ^rss.xml$ atom.xml [L]
RewriteRule ^rss$ atom.xml [L]
RewriteRule ^atom$ atom.xml [L]

# Browser caching using cache-control headers.
<ifModule mod_headers.c>
    # One year for media and font files.
    <filesMatch ".(flv|gif|ico|jpg|jpeg|mp4|mpeg|png|svg|swf|webp|woff2)$">
        Header set Cache-Control "max-age=31536000, public"
    </filesMatch>

    # Three months for JavaScript and PDF files.
    <filesMatch ".(js|pdf)$">
        Header set Cache-Control "max-age=7776000, public"
    </filesMatch>

    # Two months for CSS files.
    <filesMatch ".(css)$">
        Header set Cache-Control "max-age=5184000, public"
    </filesMatch>
</ifModule>