Caverna - Bloqueio de Sites is a free Chrome add-on designed to help users maintain their concentration by blocking distracting websites. This tool is particularly useful for individuals looking to enhance productivity by restricting access to non-essential sites that may interfere with their tasks. The add-on is straightforward to install and can be easily configured to suit individual preferences, allowing users to tailor their browsing experience effectively.

The primary feature of Caverna is its ability to create a 'cave mode' that enables users to specify which websites to block. By eliminating these distractions, users can stay focused on their main objectives and improve their overall efficiency. The intuitive interface makes it easy to manage blocked sites, ensuring a seamless experience for those looking to boost their concentration and productivity.