Our detectives are back with the following intel on this WordPress site
The site is using the VIA theme by Design Action Collective .
We could identify 4 plugins (there might be more) - ARVE Advanced Responsive Video Embedder (YouTube, Vimeo, HTML5 Video …) , Google Analyticator , qTranslate X and Simple Share Buttons Adder
Easy responsive video embeds via URLs or shortcodes. Perfect drop-in replacement for WordPress' default embeds. Best plugin for videos?