Less than a day after announcing it was introducing a version of its “Subscribe” button for websites, Facebook has taken the new feature live.

According to a post on the Facebook developer blog, the new button has the same functionality as it does on Facebook, with a subscriber seeing the public posts of the person they subscribed to appear in their News Feed. In addition, the new Subscribe action is also shared to friends of the subscriber, so anyone who sees that update will also be able to Subscribe to someone’s public posts via their News Feed.

The subscribe button is already live on a number of websites such as Absolute Radio, The Daily Beast, The Washington Post, The Huffington Post and Time.com. The HTML5, iframe and XFBML versions of the Subscribe button’s code are now available to everyone on the developer blog post.