Our detectives are back with the following intel on this WordPress site
The site is using the WPzen theme by e404 Themes .
We could identify 2 plugins (there might be more) -
Perfect Images + Retina
This information was last updated 20 September, 2017
WPzen theme, based on _s
Improve your WordPress SEO: Write better content and have a fully optimized WordPress site using the Yoast SEO plugin.
Retina, Replace Images, Regenerate Thumbnails, Image Sizes Management, Image Threshold and more.