turnstile

Haven't heard of it before, looks to be made by Cloudflare. Cloudflare don't seem to be a totally awful company, but that's always just one CEO-change away.

Their web site sounds promising, saying "Turnstile can generate multiple types of non-intrusive challenges to verify users are human, all without showing visitors a puzzle." and "Unlike CAPTCHA options, Turnstile never harvests data for ad retargeting."

So how do they make money from this?