Cloudflare Turnstile

API

CAPTCHA alternative that checks visitors are human, verified server-side

Fiyat: Free; Enterprise plan via sales
Erişim: Widget secret key

Hakkında

Free Cloudflare widget that checks a visitor is human, usually without a puzzle, plus a siteverify API that validates its tokens on your server. It works on any site without routing traffic through Cloudflare; the free plan allows up to 20 widgets.

Neler yapabilirsin

Protect sign-up, login and contact forms from bots without a visual CAPTCHA
Validate widget tokens on your server with the siteverify API before accepting a form
Replace reCAPTCHA or hCaptcha with a privacy-preserving challenge

Başlarken

Create a widget in the Cloudflare dashboard to get a sitekey and secret
Add the Turnstile script and a cf-turnstile div with your sitekey to the form
Verify each submitted token from your server with siteverify

Örnek kod

# Documented test secret and dummy token; use your widget's secret in production
curl -X POST https://challenges.cloudflare.com/turnstile/v0/siteverify \
  -d secret=1x0000000000000000000000000000000AA \
  -d response=XXXX.DUMMY.TOKEN.XXXX

Ayrıntılar

Barındırma: Hazır hizmet (bulut)
Kullanılabildiği yerler: Tüm dünya
Resmi SDK'lar: JavaScript/TypeScript, Python, Go
MCP sunucusu: Uzak sunucu