bit.ly allows users to shorten, share, and track links (URLs). Reducing the URL length makes sharing easier. bit.ly can be accessed through their website, bookmarklets and this open API. bit.ly is also integrated into several popular third-party tools such as Tweetdeck and is used extensively on services like Twitter. Unique user-level and aggregate links can be created and let users view complete, real-time traffic and referrer data, as well as location and metadata.