OpenWRT

Anubis is a compromise between security and usability, using a scheme to reduce the load caused by bots and scrapers. Key features include a proof-of-work challenge page that adds a negligible load to individual users but becomes expensive for mass scrapers. The service uses modern JavaScript features and is designed to work in conjunction with fingerprinting and identifying headless browsers. Technical implementation details include the use of a proposed proof-of-work scheme for reducing email spam, adapted for website protection. Specific use cases include protecting websites from downtime caused by bots and scrapers, and ensuring resources remain accessible to legitimate users. A unique differentiator is Anubis' ability to give a 'good enough' placeholder solution, allowing for more time to be spent on fingerprinting and identifying headless browsers.