org website is protected by Anubis, a system designed to prevent automated access by bots, particularly those used by AI companies for large-scale web scraping. Anubis employs a proof-of-work challenge, inspired by the Hashcash scheme, to make automated scraping more resource-intensive and less feasible at scale. This approach aims to reduce downtime and maintain accessibility for legitimate users by deterring mass scraping activities that could overwhelm the server.
The protection system requires users to complete a JavaScript-based proof-of-work task before accessing the site, which is intended to be negligible for individual visitors but increasingly costly for automated scrapers. There is mention of ongoing efforts to develop a solution that does not require JavaScript, as well as future plans to use browser fingerprinting techniques, such as analyzing font rendering, to better distinguish between legitimate users and headless browsers.
Anubis is identified as being made by Techaro, with a specific version number provided. The mascot design is credited to CELPHASE. No information is provided regarding catsoop itself as a software product, nor about pricing, licensing, or other features beyond the anti-bot protection currently in place on the website.
catsoop is an Other infrastructure product. catsoop is available on the web and the command line.
Behind catsoop is Techaro, based in Canada, and the product first shipped in 2025. Development happens publicly on GitHub with 20.2k stars and 45 commits in the last 90 days.
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