How to Set Up and Integrate Google reCAPTCHA v3 in Your Webflow Projects

Google reCAPTCHA v3 is a powerful tool to protect your Webflow forms from spam and bots while maintaining a seamless user experience. Unlike reCAPTCHA v2, it doesn’t require users to solve puzzles or click checkboxes. Instead, it works in the background, assigning a score to each user based on their interaction with your site. Here's a step-by-step guide to set up and integrate Google reCAPTCHA v3 in your Webflow projects.

Step 1: Register Your Website on Google reCAPTCHA

1. Go to Google reCAPTCHA: Visit Google reCAPTCHA Admin Console.
2. Log in with Your Google Account.
3. Register a New Site:
   • Add a label to identify the site.
   • Choose "reCAPTCHA v3."
   • Enter the domain name(s) of your Webflow project (e.g., yourwebsite.com).
4. Accept Terms of Service and click "Submit."
5. Copy Your Site Key and Secret Key: Save these for later use

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Step 2: Add reCAPTCHA Script to Your Webflow Project

1. Navigate to Your Webflow Project: Open your Webflow dashboard and select the project where you want to add reCAPTCHA.
2. Go to Project Settings: Click on "Settings" in the top menu.
3. Add Custom Code:

   <script src="https://www.google.com/recaptcha/api.js?render=your_site_key"></script>

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4. Replace your_site_key with the site key you obtained in Step 1.
5. Save Changes and Publish Your Site.

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Step 3: Modify Webflow Form

1. Open Webflow Designer: Navigate to the page where your form is located.
2. Add a Hidden Input Field:
   • Drag and drop a new "Embed" element into your form.
   • Paste the following code inside the embed:
     <input type="hidden" name="g-recaptcha-response" id="g-recaptcha-response">
   • Save the Embed Element and position it inside your form.

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Step 4: Execute reCAPTCHA Verification on Form Submission

1. Add a Custom Code Embed:
   • Below the form, add another "Embed" element and paste the following JavaScript:
   • Replace your_site_key with the site key from Step 1.

<script>
  grecaptcha.ready(function() {
    document.querySelector('form').addEventListener('submit', function(e) {
      e.preventDefault(); // Prevent default form submission
      grecaptcha.execute('your_site_key', {action: 'submit'}).then(function(token) {
        document.getElementById('g-recaptcha-response').value = token;
        e.target.submit(); // Submit the form programmatically
      });
    });
  });
</script>

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Step 5: Test Your Integration

1. Submit the Form: Go to your live site and try submitting the form.
2. Check Google Admin Console:
   • Open the Google reCAPTCHA Admin Console.
   • Verify that your form submissions are recorded, and the reCAPTCHA scores are being assigned correctly.

Bonus Tips for reCAPTCHA v3 Optimization

1. Set an Appropriate Score Threshold: In the Google Admin Console, set a score threshold to determine what level of interaction is deemed suspicious. A common default is 0.5 (scale ranges from 0 to 1).
2. Monitor reCAPTCHA Analytics: Regularly check the reCAPTCHA dashboard for suspicious activity and adjust your settings as needed.
3. Add Server-Side Verification: If your Webflow form integrates with third-party tools, use server-side verification to validate the reCAPTCHA token.

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With reCAPTCHA v3 properly integrated, your Webflow forms will be better protected from spam while ensuring a smooth user experience. By following this guide, you’ll enhance the security and professionalism of your website.

At Webclaw IT Solutions, we specialize in Webflow development and advanced integrations like reCAPTCHA v3. If you need expert assistance, from setup to troubleshooting, our team is here to help. Contact us to elevate your Webflow projects with tailored solutions.