2015 theme from WordPress.
http://wordpress.org/themes/twentyfifteen
Frameworks · WordPress Theme
Get access to data on 863,481 websites that are Twenty Fifteen Customers. We know of 199,270 live websites using Twenty Fifteen and an additional 664,211 sites that used Twenty Fifteen historically and 106,939 websites in the United States.
Get a list of 863,481 websites using Twenty Fifteen which includes location information, hosting data, contact details, 199,270 currently live websites and an additional 41,505 domains that redirect to sites in this list. 664,211 sites that used this technology previously and 106,939 websites in the United States currently using Twenty Fifteen.