Our detectives are back with the following intel on this WordPress site
The site is using the G Blog theme by greenturtlelab .
We could identify 2 plugins (there might be more) - XML Sitemaps and W3 Total Cache
G Blog is simple, clean and elegant WordPress Theme for your blog site. This theme comes with slider, promo section, copyright options and social options. In addition this theme has added custom widget for recent post, author and social menu. Use this awesome WordPress theme for your blog site, you will never look for alternative.
This plugin will improve SEO by helping search enginess better index your site using sitemaps.
Search Engine (SEO) & Performance Optimization (WPO) via caching. Integrated caching: CDN, Page, Minify, Object, Fragment, Database support.