> Google's implementation, reCAPTCHA, eventually did away with much of these shenanigans to make the browser identify low-risk human users in the background, but the image verification method still pops up occasionally if risk cannot be ascertained.
Can’t remember the last time I clicked reCAPTCHA and didn’t have to do the challenge, come to think of it - I can’t remember a single time, so if it has happened it is very rare, whereas the Cloudflare one always lets me through.
Try using a browser which resists tracking more, you'll see it. And a lot of the time you see it it's not actually solvable: the captcha system has already decided you're a bot and will just try to tarpit you with ever slower-appearing challenges which will always fail.
Can’t remember the last time I clicked reCAPTCHA and didn’t have to do the challenge, come to think of it - I can’t remember a single time, so if it has happened it is very rare, whereas the Cloudflare one always lets me through.