Two years ago, Upworthy didn't exist. Today, it gets more than 80 million unique visitors every month. That dwarfs traditional media outlets like The Washington Post and The New York Times.
Upworthy isn't the first newcomer to post impressive traffic numbers. Yahoo, Buzzfeed and the Huffington Post all rack up eye-popping totals. Business Insider, the Gawker network, the Vox Media network and Mashable also managed to build huge audiences from a standing start. But Upworthy is different. You can see why on this graph (data via Newswhip):