Anubis

Anubis

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Introduction
Anubis is a proof-of-work challenge system that protects websites from aggressive AI scraping bots.
Listed on
July 23, 2026

What is Anubis?

Anubis is a lightweight, self-hostable proof-of-work challenge system designed to protect websites from aggressive AI scraping. It presents visitors with a computational challenge that is trivial for individual users but expensive for mass scrapers, thereby reducing server load and downtime. It is a compromise solution that aims to make scraping costly while minimizing impact on legitimate users.

How to use Anubis?

  • Website administrators install and configure Anubis on their server to intercept incoming requests. When a visitor arrives, Anubis presents a proof-of-work challenge in the browser; once solved, the visitor is granted access to the site. The system requires modern JavaScript and may need to be disabled for certain browser plugins like JShelter.

Core features of Anubis

  • Proof-of-Work challenge (Hashcash-style) to deter mass scraping
  • Lightweight and self-hostable
  • Minimal impact on individual users
  • Designed to reduce server downtime caused by AI scrapers
  • Open-source (available on GitHub)
  • Versioned releases (e.g., v1.25.0)

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