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Migrate from reCAPTCHA

If you are using reCAPTCHA today, you can switch seamlessly to Cloudflare Turnstile by following the step-by-step guide below to assist with the upgrade process.

To complete the migration, you must obtain the sitekey and secret key.

Client-side integration

  1. Update the client-side integration by inserting the Turnstile script snippet in your HTML's <head> element.

    Turnstile script snippet
    <script src="https://challenges.cloudflare.com/turnstile/v0/api.js?compat=recaptcha" async defer></script>

  2. Locate the grecaptcha.render() calls and replace the sitekey with your Turnstile sitekey.

Server-side integration

Update the server-side integration by replacing the Siteverify URL.

Replace https://www.google.com/recaptcha/api/siteverify with the following:

https://challenges.cloudflare.com/turnstile/v0/siteverify