Comment by fc417fc802
2 months ago
Supposedly, but not really. I regularly encounter sites where cloudflare serves me with an ambiguous ban notice rather than a proof of work. What's worse is that these apparent IP bans take effect even if I already had a valid active session (ie previously passed the check).
Yes, a VPN involved. That doesn't make it okay and notice that anubis by default works without issue (though possibly with a more difficult challenge) in the exact same scenario.
There's lists of data center IPs. You're probably in them and That's why you're getting banned
Regardless of the precise logic it's no excuse for the policy. Simply hand out a sufficiently difficult PoW to prevent widespread abuse.
I'm quite certain it isn't a generic "datacenter" list though because a given VPN exit that was working will suddenly stop. Meanwhile I have a valid cookie yet that is disregarded.
Wikipedia maintains a quite exhaustive list of them to prevent spam and they also block vpn IPs as soon as they're found.
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