GDPR 준수 reCAPTCHA 대안

<!-- Remove this: -->
<script src="https://www.google.com/
  recaptcha/api.js"></script>
<div class="g-recaptcha" 
  data-sitekey="..."></div>

<!-- Add this: -->
<script src="https://cdn.silentshield.dev/
  v1/shield.js" 
  data-site-key="YOUR_KEY">
</script>

// Verify token server-side:
const result = await fetch(
  'https://api.silentshield.dev/verify',
  {
    method: 'POST',
    body: JSON.stringify({ token })
  }
);