I have hosted 2 websites; one is in Wordpress and another one is in phpBB. I got the following scores from gtmetrix.com for the sites respectively.


I have very basic plugins/mods installed in both the sites. No caching/ no SEO tools/ no SEO mods. Only .httaccess rules are applied as follows:
wordpress
Code:
RedirectMatch 301 ^/([0-9]{4})/([0-9]{2})/([^/]+).html$ http://mywebsite.com/$3
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
<Files wp-config.php>
order allow,deny
deny from all
</Files>
# directory browsing
Options All -Indexes
<Files ~ "^.*\.([Hh][Tt][Aa])">
order allow,deny
deny from all
satisfy all
</Files>phpBB:
Code:
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]
<IfModule mod_expires.c>
# Enable expirations
ExpiresActive On
# Default directive
ExpiresDefault "access plus 1 month"
</IfModule>
# directory browsing
Options All -Indexes
<Files ~ "^.*\.([Hh][Tt][Aa])">
order allow,deny
deny from all
satisfy all
</Files>
What may be the possible reason for such a low score in phpBB site? I have applied to "Leverage Browser Caching Rules", but it is not in effect actually.
Please help me to improve my score.
Sorry, if I am Off-topic.