Why Sha256? Literally every processor has a crypto accelerator and will easily pass. And datacenter servers have beefy server CPUs. This is only effective against no-JS scrapers.
this post was submitted on 21 Mar 2025
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It requires a bunch of browser features that non-user browsers don't have, and the proof-of-work part is like the least relevant piece in this that only gets invoked once a week or so to generate a unique cookie.
I sometimes have the feeling that as soon as some crypto-currency related features are mentioned people shut off part of their brain. Either because they hate crypto-currencies or because crypto-currency scammers have trained them to only look at some technical implementation details and fail to see the larger picture that they are being scammed.
So if you try to access a website using this technology via terminal, what happens? The connection fails?
If your browser doesn't have a Mozilla user agent (I.e. like chrome or Firefox) it will pass directly. Most AI crawlers use these user agents to pretend to be human users
It's a clever solution but I did see one recently that IMO was more elegant for noscript users. I can't remember the name but it would create a dummy link that human users won't touch, but webcrawlers will naturally navigate into, but then generates an infinitely deep tree of super basic HTML to force bots into endlessly trawling a cheap-to-serve portion of your webserver instead of something heavier. Might have even integrated with fail2ban to pick out obvious bots and keep them off your network for good.
That's a tarpit that you're describing, like iocaine or nepthasis. Those are to feed the crawler junk data to try and make their eventual output bad.
Anubis tries to not let the AI crawlers in at all.
generates an infinitely deep tree
Wouldn't the bot simply limit the depth of it's seek?
That would be reasonable. The people running these things aren't reasonable. They ignore every established mechanism to communicate a lack of consent to their activity because they don't respect others' agency and want everything.
It could be infinitely wide too if they desired. It shouldn't be that hard to do I wouldn't think. I would suspect they limit the time a chain can use though to eventually escape out, though this still protects data because it obfuscates legitimate data that it wants. The goal isn't to trap them forever. It's to keep them from getting anything useful.
Found the FF14 fan lol
The release names are hilarious
What's the ffxiv reference here?
Anubis is from Egyptian mythology.
The names of release versions are famous FFXIV Garleans
I think the maze approach is better, this seems like it hurts valid users if the web more than a company would be.
For those not aware, nepenthes is an example for the above mentioned approach !
This looks like it can can actually fuck up some models, but the unnecessary CPU load it will generate means most websites won't use it unfortunately
I did not find any instruction on the source page on how to actually deploy this. That would be a nice touch imho.
The docker image page has it
Or even a quick link to the relevant portion of the docs at least would be cool
There are some detailed instructions on the docs site, tho I agree it'd be nice to have in the readme, too.
Sounds like the dev was not expecting this much interest for the project out of nowhere so there will def be gaps.
Meaning it wastes time and power such that it gets expensive on a large scale? Or does it mine crypto?
Yes, Anubis uses proof of work, like some cryptocurrencies do as well, to slow down/mitigate mass scale crawling by making them do expensive computation.
https://lemmy.world/post/27101209 has a great article attached to it about this.
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Edit: Just to be clear, this doesn't mine any cryptos, just uses same idea for slowing down the requests.
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It's a rather brilliant idea really, but when you consider the environmental implications of forcing web requests to ensure proof of work to function, this effectively burns a more coal for every site that implements it.
I don't think AI companies care, and I wholeheartedly support any and all FOSS projects using PoW when serving their websites. I'd rather have that than have them go down
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