2015 theme from WordPress.
http://wordpress.org/themes/twentyfifteen
Frameworks · WordPress Theme
Get access to data on 857,706 websites that are Twenty Fifteen Customers. We know of 160,843 live websites using Twenty Fifteen and an additional 696,863 sites that used Twenty Fifteen historically and 87,454 websites in the United States.
Get a list of 857,706 websites using Twenty Fifteen which includes location information, hosting data, contact details, 160,843 currently live websites and an additional 37,052 domains that redirect to sites in this list. 696,863 sites that used this technology previously and 87,454 websites in the United States currently using Twenty Fifteen.