Our detectives are back with the following intel on this WordPress site
The site is using the Koty.pl theme by Smultron .
We could identify 4 plugins (there might be more) - WordPress Related Posts Plugin – AddThis , Contact Form 7 , Yoast SEO and Login for WordPress
AddThis Related Posts for WordPress can help increase your visitors’ time on site and decrease your bounce rate.
Improve your WordPress SEO: Write better content and have a fully optimized WordPress site using…
Facebook Login for WordPress simple adds a facebook login button into wp-login.php and let you use facebook avatars. BuddyPress compatible