With over 400 million monthly visitors and 255 million monthly active users, Twitter is a real-time communications platform used by world leaders, athletes, news organizations, and entertainment outlets. It is available in more than 35 languages and can be accessed through the web, SMS, and mobile applications. Founded in 2006, Twitter is headquartered in San Francisco and has offices in various cities around the world. Its mission is to facilitate conversation and serve the public by providing a platform where everyone's voice matters.