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title: Why is Anubis showing up on a website?
---

Anubis shows up on a website because the administrator set up Anubis to protect their server. There are many abusive scrapers [destroying websites with too many requests](https://thelibre.news/foss-infrastructure-is-under-attack-by-ai-companies/), making servers collapse under the pressure. This causes downtime for the websites, making resources inaccessible for everyone.

Anubis is a web application firewall that uses heuristics to discover suspect clients and present them a simple challenge. The idea behind these challenges is that they are easy to solve for individuals, but prohibitively expensive to solve en masse for abusive scraping.

Research and development continues such that Anubis shows challenge pages less often. Please keep updated with Anubis' development to learn more about the progress in this matter.
