.htacces tweaks, SSL serificats, WordPress Tweaks
RewriteCond %{HTTPS} off [OR]RewriteCond %{HTTP_HOST} !^www\.domain\.com$ [NC]RewriteRule ^(.*)$ https://www.domain.com/$1 [L,R=301] Source: Forcing SSL and WWW using .htaccess – Stack Overflow
CSS Tweaks, Hacking WordPress, Optimize WordPress, WordPress Tweaks
Source: Step by Step – How to Combine CSS Stylesheets Into 1 File in WordPress • SpeedRak.com : SpeedRak.com