Used for displaying posts, custom posts and stickey posts on WordPress.
https://wordpress.org/plugins/ultimate-posts-widget/
Widgets · WordPress Plugins
Get access to data on 69,386 websites that are Ultimate Posts Widget Customers. We know of 22,312 live websites using Ultimate Posts Widget and an additional 47,074 sites that used Ultimate Posts Widget historically and 11,357 websites in the United States.
Get a list of 69,386 websites using Ultimate Posts Widget which includes location information, hosting data, contact details, 22,312 currently live websites and an additional 16,040 domains that redirect to sites in this list. 47,074 sites that used this technology previously and 11,357 websites in the United States currently using Ultimate Posts Widget.