This plugin allows you to add a honeypot captcha to your Craft CMS contact form.
This plugin requires Craft CMS 4.0.0+ or 5.0.0+, and the Contact Form plugin.
You can install this plugin from the Plugin Store or with Composer.
Go to the Plugin Store in your project’s Control Panel and search for “Contact Form Honeypot”. Then click on the “Install” button in its modal window.
Open your terminal and run the following commands:
# go to the project directory
cd /path/to/my-project.test
# tell Composer to load the plugin
composer require craftcms/contact-form-honeypot
# tell Craft to install the plugin
./craft plugin/install contact-form-honeypot
To configure the plugin, go to Settings → Contact Form Honeypot, and choose a param name that your honeypot field should have.
Then edit your contact form template(s), and add the honeypot field.
<input id="secretHoneypotParamName" name="secretHoneypotParamName" type="text">
You can hide the field with CSS:
input#secretHoneypotParamName { display: none; }