Title: Inverted Checkbox Antispam
Author: Yevhen Horbyshyn
Published: <strong>ମଇ 14, 2025</strong>
Last modified: ମଇ 14, 2025

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# Inverted Checkbox Antispam

 By [Yevhen Horbyshyn](https://profiles.wordpress.org/horbiq/)

[Download](https://downloads.wordpress.org/plugin/inverted-checkbox-antispam.1.0.0.zip)

 * [Details](https://ory.wordpress.org/plugins/inverted-checkbox-antispam/#description)
 * [Reviews](https://ory.wordpress.org/plugins/inverted-checkbox-antispam/#reviews)
 *  [Installation](https://ory.wordpress.org/plugins/inverted-checkbox-antispam/#installation)
 * [Development](https://ory.wordpress.org/plugins/inverted-checkbox-antispam/#developers)

 [Support](https://wordpress.org/support/plugin/inverted-checkbox-antispam/)

## Description

This plugin adds a hidden “inverted” checkbox to your forms to prevent bots from
submitting them.

 * Adds support for Contact Form 7 via shortcode `[ica_checkbox]`
 * Adds JavaScript-based hidden checkbox to regular forms in the footer
 * Blocks form submission if the checkbox is unchecked or missing (typical behavior
   for bots)

## Installation

 1. Upload the plugin files to the `/wp-content/plugins/inverted-checkbox-antispam`
    directory, or install the plugin through the WordPress plugins screen directly.
 2. Activate the plugin through the ‘Plugins’ screen in WordPress
 3. Go to ‘Settings’  ‘Inverted Checkbox Antispam’ to enable protection for CF7 or 
    regular forms.
 4. If using CF7, add `[ica_checkbox]` inside your form template.

## FAQ

### What is an inverted checkbox?

It’s a hidden checkbox that must remain checked. Bots often uncheck all checkboxes—
which will fail the validation.

### Does this affect user experience?

No. The checkbox is hidden using CSS/JS and is not visible or interactable for humans.

### Can I use this without Contact Form 7?

Yes. It works with any standard HTML forms.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Inverted Checkbox Antispam” is open source software. The following people have 
contributed to this plugin.

Contributors

 *   [ Yevhen Horbyshyn ](https://profiles.wordpress.org/horbiq/)

[Translate “Inverted Checkbox Antispam” into your language.](https://translate.wordpress.org/projects/wp-plugins/inverted-checkbox-antispam)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/inverted-checkbox-antispam/),
check out the [SVN repository](https://plugins.svn.wordpress.org/inverted-checkbox-antispam/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/inverted-checkbox-antispam/)
by [RSS](https://plugins.trac.wordpress.org/log/inverted-checkbox-antispam/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0

 * Initial release
 * CF7 and standard form support
 * Admin options page
 * Safe variable handling

## Meta

 *  Version **1.0**
 *  Last updated **11 months ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 5.0 or higher **
 *  Tested up to **6.8.5**
 *  PHP version ** 7.2 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/inverted-checkbox-antispam/)
 * Tags
 * [antispam](https://ory.wordpress.org/plugins/tags/antispam/)[checkbox](https://ory.wordpress.org/plugins/tags/checkbox/)
   [contact form 7](https://ory.wordpress.org/plugins/tags/contact-form-7/)[spam protection](https://ory.wordpress.org/plugins/tags/spam-protection/)
 *  [Advanced View](https://ory.wordpress.org/plugins/inverted-checkbox-antispam/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/inverted-checkbox-antispam/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/inverted-checkbox-antispam/reviews/)

## Contributors

 *   [ Yevhen Horbyshyn ](https://profiles.wordpress.org/horbiq/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/inverted-checkbox-antispam/)