Cloudflare has launched Turnstile , a free alternative to CAPTCHA that anyone can use, whether they are a Cloudflare customer or not. Turnstile leverages Cloudflare’s Managed Challenge system to take cues from user behavior, browser data, and Private Access Tokens on Apple devices to differentiate between humans and bots. Cloudflare claims its Managed Challenge system can reduce the CAPTCHA shown to visitors by 91% within a year. The user will only see “Verifying…” followed by “Success”. Besides being annoying and time consuming, CAPTCHA is largely controlled by Google through its reCAPTCHA service, according to Cloudflare. Google says it won’t use that information to target ads, but Google is an ad sales company after all.
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