How NOT to detect residential proxies (blog.truesign.ai)

I wonder if it's related: for the last weeks I'm getting "you've been blocked" screens when visiting random websites. Is there a way to know if my IP made it to one of those blacklists?

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the demo is nice but I can't find details on how it does it internally?

agree with the ending part of the post: it's important to avoid shared IPs causing wrong classifications, but even more important you can't really block people for using proxies. What matters is the big picture at the site traffic's level