HTML5 video
Support for HTML5 video has been steadily increasing. In June 2013, Netflix added support for HTML5 video. In January 2015, YouTube switched to using HTML5 video instead of Flash by default. In December 2015, Facebook switched from Flash to HTML5 for all video content.
HTML5
According to a report released on 30 September 2011, 34 of the world's top 100 Web sites were using HTML 5the adoption led by search engines and social networks. Another report released in August 2013 has shown that 153 of the "Fortune 500" U.S. companies implemented HTML5 on their corporate websites.