Title: Inverted Checkbox Antispam
Author: Yevhen Horbyshyn
Published: <strong>14.5.2025</strong>
Last modified: 14.5.2025

---

Hae lisäosia

![](https://ps.w.org/inverted-checkbox-antispam/assets/banner-772x250.jpg?rev=3293440)

This plugin **hasn’t been tested with the latest 3 major releases of WordPress**.
It may no longer be maintained or supported and may have compatibility issues when
used with more recent versions of WordPress.

![](https://ps.w.org/inverted-checkbox-antispam/assets/icon-256x256.png?rev=3293440)

# Inverted Checkbox Antispam

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

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

 * [Tiedot](https://fi.wordpress.org/plugins/inverted-checkbox-antispam/#description)
 * [Arvostelut](https://fi.wordpress.org/plugins/inverted-checkbox-antispam/#reviews)
 *  [Asennus](https://fi.wordpress.org/plugins/inverted-checkbox-antispam/#installation)
 * [Kehitys](https://fi.wordpress.org/plugins/inverted-checkbox-antispam/#developers)

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

## Kuvaus

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)

## Asennus

 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.

## UKK

### 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.

## Arvostelut

There are no reviews for this plugin.

## Avustajat & Kehittäjät

“Inverted Checkbox Antispam” perustuu avoimeen lähdekoodiin. Seuraavat henkilöt 
ovat osallistuneet tämän lisäosan kehittämiseen.

Avustajat

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

[Käännä “Inverted Checkbox Antispam” omalle kielellesi.](https://translate.wordpress.org/projects/wp-plugins/inverted-checkbox-antispam)

### Oletko kiinnostunut kehitystyöstä?

[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).

## Muutosloki

#### 1.0

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

## Metatiedot

 *  Version **1.0**
 *  Last updated **1 vuosi sitten**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 5.0 or higher **
 *  Tested up to **6.8.10**
 *  PHP version ** 7.2 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/inverted-checkbox-antispam/)
 * Tags
 * [antispam](https://fi.wordpress.org/plugins/tags/antispam/)[checkbox](https://fi.wordpress.org/plugins/tags/checkbox/)
   [contact form 7](https://fi.wordpress.org/plugins/tags/contact-form-7/)[spam protection](https://fi.wordpress.org/plugins/tags/spam-protection/)
 *  [Edistynyt näkymä](https://fi.wordpress.org/plugins/inverted-checkbox-antispam/advanced/)

## Arvosanat

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/)

## Avustajat

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

## Tuki

Onko sinulla jotain sanottavaa? Tarvitsetko apua?

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