Captcha v3

captcha

You can execute reCAPTCHA on as many actions as you want on the same page.

Automatically bind the challenge to a button
The easiest method for using reCAPTCHA v3 on your page is to include the necessary JavaScript resource and add a few attributes to your html button.

Load the JavaScript API.
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 <script src="https://www.google.com/recaptcha/api.js"></script>
 
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Add a callback function to handle the token.
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 <script>
   function onSubmit(token) {
     document.getElementById("demo-form").submit();
   }
 </script>
 
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Step:3
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Add attributes to your html button.

<button class="g-recaptcha" 
        data-sitekey="reCAPTCHA_site_key" 
        data-callback='onSubmit' 
        data-action='submit'>Submit</button>