.htaccess

<IfModule mod_headers.c>
    #Cache Images
    <FilesMatch "\.(gif|jpg|jpeg|png|ico)$">	
        Header set Cache-Control "max-age=7257600"
        Header set Pragma public        
    </FilesMatch>
    #cache css and js
    <FilesMatch "\.(css|js)$">		
        Header set Cache-Control "max-age=604800, public, must-revalidate"
        Header set Pragma public
        Header append Vary Accept-Encoding        
    </FilesMatch>
</IfModule>

<IfModule mod_expires.c>
    ExpiresActive On

    #1 month
    ExpiresByType image/x-icon A2419200
    ExpiresByType image/gif A7257600
    ExpiresByType image/jpeg A7257600
    ExpiresByType image/png A7257600

    #1 week
    ExpiresByType text/css A604800
    ExpiresByType text/javascript A604800
    ExpiresByType application/x-javascript A604800
    <FilesMatch "\.(php)$">
        ExpiresActive Off
    </FilesMatch>
</IfModule>

<FilesMatch "\.(html|css|js)$">
    AddDefaultCharset utf-8
</FilesMatch>

<IfModule mod_deflate.c>
    <FilesMatch "\.(html|js|css)$">
        SetOutputFilter DEFLATE
    </FilesMatch>
</IfModule>