Pornhub is an adult tube website that was founded in 2007. A "tube site" typically refers to a pornographic website that houses uploaded, and often pirated, content. Pornhub wasn't the first-ever tube site, but it is one of the most recognizable and trafficked sites in the world. In December 2021, Pornhub was the eighth most trafficked website globally and the only adult site in the top 15 with over a billion visits that month alone. Pornhub and the emergence of tube sites generally changed the porn industry. Before, porn was distributed physically (in video stores, DVDs) or on studio websites where you downloaded the content studios produced. Tube sites made porn much more accessible, but shifted how porn is made. Now, Pornhub is owned by the conglomerate MindGeek, which owns a large number of tube sites and studios.