HTML5 video
In 2010, in the wake of Apple iPad launch and after Steve Jobs announced that Apple mobile devices would not support Flash, a number of high-profile sites began to serve H.264 HTML5 video instead of Adobe Flash for user-agents identifying as iPad. HTML5 video was not as widespread as Flash videos, though there were rollouts of experimental HTML5-based video players from DailyMotion (using Ogg Theora and Vorbis format), YouTube (using the H.264 and WebM formats), and Vimeo (using the H.264 format).
HTML5 video
As of 2016, Flash is still widely installed on desktops, while generally not being supported on mobile devices such as smartphones. The Flash plugin is widely assumed, including by Adobe, to be destined to be phased out, which will leave HTML5 video as the only widely supported method to play video on the World Wide Web. Chrome, Firefox, Safari, and Edge, have plans to make almost all flash content click to play in 2017. The only major browser which does not have announced plans to deprecate Flash is Internet Explorer. Adobe announced on 25 July 2017 that they would be permanently ending development of Flash in 2020.