.htaccess

ServerSignature Off

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule ^api/(.*)$ backend/index.php?request=$1 [QSA,NC,L]
  RewriteRule ^$ frontend [L]
</IfModule>

<IfModule mod_deflate.c>
  AddOutputFilterByType DEFLATE text/plain text/html
  AddOutputFilterByType DEFLATE image/svg+xml
  AddOutputFilterByType DEFLATE text/css
  AddOutputFilterByType DEFLATE text/json application/json
  AddOutputFilterByType DEFLATE application/javascript application/x-javascript text/x-component

  # Drop problematic browsers
  BrowserMatch ^Mozilla/4 gzip-only-text/html
  BrowserMatch ^Mozilla/4\.0[678] no-gzip
  BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html

  # Make sure proxies don't deliver the wrong content
  <IfModule mod_headers.c>
    Header append Vary User-Agent env=!dont-vary
  </IfModule>
</IfModule>

<IfModule mod_headers.c>
  <FilesMatch "\.(js|css|xml|gz)$">
    Header append Vary Accept-Encoding
  </FilesMatch>
</IfModule>

<IfModule mod_gzip.c>
  mod_gzip_on Yes
  mod_gzip_dechunk Yes
  mod_gzip_item_include file \.(html?|txt|css|json|php)$
  mod_gzip_item_include handler ^cgi-script$
  mod_gzip_item_include mime ^text/.*
  mod_gzip_item_include mime ^application/x-javascript.*
  mod_gzip_item_include mime ^application/json
  mod_gzip_item_exclude mime ^image/.*
  mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
</IfModule>

<IfModule mod_headers.c>
    Header set Connection keep-alive
</IfModule>

<IfModule mod_expires.c>
  # enable the directives - assuming they're not enabled globally
  ExpiresActive on

  ExpiresByType text/html "access plus 1 year"

  # send an Expires: header for each of these mimetypes (as defined by server)
  ExpiresByType image/png "access plus 1 year"

  # css may change a bit sometimes, so define shorter expiration
  ExpiresByType text/css "access plus 3 months"

  # libraries won't change much
  ExpiresByType application/javascript "access plus 1 year"
  ExpiresByType application/x-javascript "access plus 1 year"
</IfModule>

<IfModule mod_pagespeed.c>
  # ModPagespeed on
</IfModule>