Difficulty: 6, Speed: 8.689kH/s

I noticed the same but not that long. Anubis definitely takes a couple minutes for me now

Are you using a shady VPN or so? It is very unlikely that lemmy.ml defaults to difficulty 6 for all visitors. There is likely something that makes your connection look shady so that you get pre-sorted to the bad pile.

No VPN. ISP is Comcast in USA. My OS is Windows 7, not sure if it considers that to be shady. Was using "Pale Moon" web browser at first. Then I tried in different browsers and had similar results in Chrome and Firefox.

Windows 7 hasn't received security updates for ages. Your machine is probably part of seven bot nets.

Your OS has been out of mainline support for over a decade. Out of extended support for 6 years. No wonder it's tripping security flags left and right, you're entire machine is a walking security disaster. Well past time to move to a modern OS. You can't ask for support for an OS that's been out of support longer than Lemmy/Anubis has even existed.

I got a difficulty 6 anubis challenge earlier today from my home network, so from a residential ip address.

It was with the latest firefox.

OPs CPU is an absolute potato. My work laptop has a 13th gen Core i9 and it took about 10 seconds to get through at ~700kH/s and that pegged my CPU the entire time. And according to geekbench my CPU is 800% faster single core and 2400% faster multi. Anubis, and any proof of work blocker is just not friendly to old hardware.

https://browser.geekbench.com/v6/cpu/compare/1470080?baseline=14969576

I just tested on my M4 Max machine which absolutely destroys the i9 and it still took about 10 seconds of churning away almost full power to get through. Neither of these machines should be flagged in any way shape or form as bots or needing that deep of an inspection.

Maybe you have a smart-TV that is abused as a residential proxy? Many apps sell this to AI scrapers instead of or in addition to showing you ads.

The speed of the CPU is entirely irrelevant to what I wrote 🤷

There are a devices I can think of. Thanks! I'll look into it.

Sadly, not everyone cares about computer security. *cough*^old apple laptop for which the latest supported firefox release still uses the old UI as personal laptop^*cough*

The speed of the CPU is entire relevant to Anubis though. The faster the CPU the faster it does the POW, and the faster it lets you in. And OP isn't alone in it making your machine do a lot of work to get in.

Update: Eventually I was able to get in using Chrome or Firefox. Their hashrate was much faster than Pale Moon. Still can't use lemmy.ml in Pale Moon.

I tested some other instances that are behind Anubis: quokk.au, lemmy.ca, lemmy.nz. The difficulty levels they assigned me were 1, 3, 4 respectively and I was able to get in after a few seconds. dbzero uses haphash and their challnge took my browser 566 ms.

I have been getting difficulty 6 the past few days on both my phone and my desktop (Proton VPN, no browser history). Maybe crosspost this to https://lemmy.ml/c/meta@lemmy.ml?