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Automatic spam filtering

All submissions are automatically going through spam filtering system.

Providing field names

To improve the accuracy of the filtering algorithm, provide the names of the email, name and message fields of your form, if they exist.

For example, if your form looks like this:

<form id="contact" action="YOUR_FORM_HANDLER_URL" method="post">
<input placeholder="Your name" type="text" name="name" required >
<input placeholder="Your Email Address" type="email" name="email" required>
<textarea placeholder="Type your Message Here...." name="message" required></textarea>
<button name="submit" type="submit">Submit</button>
  1. Note the name attribute of the input fields in your HTML.
  2. Go to Spam filter ⓵ and provide the names of the email ⓶, message ⓷ and name ⓸ fields as they appear in your html form. If you don't have such fields in your form, just leave this empty
  3. Don't forget to save once you update each field

Spam filter fields

Add spam detection script

If you want to improve the spam detection rate even more, you can add a script to your page that will run additional checks on the client. The main tests that it runs are checking whether the browser supports javascript, and how quickly submissions are made. More tests may be added in the future.


This script does not have any effect on user experience

To add the script, follow these steps:

  1. Add the following script to your site's head section
    <script src=""></script>
  2. Add the following hidden field into the form that you'd like to protect. Add it exactly as you see here.
    <input type="hidden" name="_fd" value="0" class="form-data-marker" />
  3. Add the following script after your form's closing tag

    If you are using a framework such as React or Vue, you will have to run this code after the DOM element with your form was rendered. For example, in Vue, you can do this inside the onMounted hook

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