The metered paywall allows users to view a specific number of articles before requiring paid subscription.[1] In contrast to sites allowing access to select content outside the paywall, the metered paywall allows access to any article as long as the user has not surpassed the set limit. The Financial Times allows users to access 10 articles before becoming paid subscribers.[25] The New York Times controversially[2] implemented a metered paywall in March 2011 which let users view 20 free articles a month before paid subscription. In April 2012 New York Times reduced the number of free articles per month to 10.[27] Their metered paywall has been defined as not only soft, but "porous,"[4] because it also allows access to any link posted on a social media site, and up to 25 free articles a day if accessed through a search engine.[28]