YouTube is an video-sharing website. The site allows users to upload, view, rate, share, add to favorites, report and comment on videos. Available content includes video clips, TV show clips, music videos, short and documentary films, audio recordings, movie trailers and other content such as video blogging, short original videos, and educational videos.
As of February 2017, there are more than 400 hours of content uploaded to YouTube each minute, and one billion hours of content is watched on YouTube every day. As of April 2017, the website is ranked as the second most popular site in the world by Alexa Internet, a web traffic analysis company.