Is there any way to challenge proxies?

Hello,

I was wondering, is there any insight on how the threat score works? In which range should proxies/VPNs be?
I know its a vague question but perhaps we can have some insights on how it works.
Before I had captcha enabled for those countries that were “potentially a threat”, however, we are starting to get legit traffic from china and I had to disable the captcha, so my idea was to implement a condition to take into account the threat score.
I remember there was a thread with ranges such as 0-10 low risk, 10-40 spammers, etc but I can’t seem to find it.

Regards.

Cloudflare isn’t going to divulge how those scores are calculated, but the range description is here:

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