Too Long; Didn't Read
A high dwell time indicates to search engines that your website is providing valuable and interesting content, which will help to improve your SEO ranking. The longer users stay on your site, the better your ranking. Bing made an official statement in an April 2012 blog entry about dwell time. Bing said that "it's a signal we're paying attention" and that it is “mostly ahead of the competition’s “mainly ahead” of the search engine “incompetence”