this post was submitted on 28 Apr 2026
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Anubis is open source, self-hosted, doesn't block me just because I use a VPN and the later versions work even with JavaScript disabled!
Fuck Cloudflare, long live Anubis!
How exactly is a proof of work engine suppose to run, without any JS work?
https://anubis.techaro.lol/docs/admin/configuration/challenges/metarefresh/
Apparently it just tells your browser to refresh after x seconds.
Seems utterly pointless though...
With the proof of work approach, at least it's demanding the client consume some resources, though the 'right' amount is a tricky question, either it's so trivial as to hardly matter to the scrapers, or it's hard enough to put a dent in the scrapers' build, but human operated low end devices are royally screwed..
Here the crawler simply schedules a resumption and moves on to other work. The crawler doesn't need it right now and it's free for it to wait.
That's just protection by obscurity then. Any targeted attack could do that challenge at zero cost.
Which doesn't work with some browsers, but it's acceptable, I guess
Read the docs.