Cloudflare Turnstile.

Facts

Headquarters

US (US)

Category

Captcha & Bot Detection

Type

Product

GDPR-compliant

No

Open-source

No

Data hosting

US

EU alternatives

• ALTCHA

  Czech open-source proof-of-work captcha alternative

  CZ · open-source

  ↗
• CaptchaFox

  German privacy-focused captcha solution

  DE · commercial

  ↗
• Friendly Captcha

  German privacy-friendly proof-of-work captcha service

  DE · commercial

  ↗
• Trustcaptcha

  German GDPR-compliant captcha service

  DE · commercial

  ↗

Also in this category

• Google reCAPTCHAUS
• hCaptchaUS