Title: Cybernob Turnstile for Cloudflare
Author: Aneesh MK
Published: <strong>March 2, 2026</strong>
Last modified: March 2, 2026

---

Search plugins

![](https://ps.w.org/cybernob-turnstile-for-cloudflare/assets/banner-772x250.png?
rev=3472386)

![](https://ps.w.org/cybernob-turnstile-for-cloudflare/assets/icon-256x256.png?rev
=3472386)

# Cybernob Turnstile for Cloudflare

 By [Aneesh MK](https://profiles.wordpress.org/aneeshmk/)

[Download](https://downloads.wordpress.org/plugin/cybernob-turnstile-for-cloudflare.1.2.0.zip)

 * [Details](https://pcm.wordpress.org/plugins/cybernob-turnstile-for-cloudflare/#description)
 * [Reviews](https://pcm.wordpress.org/plugins/cybernob-turnstile-for-cloudflare/#reviews)
 *  [Installation](https://pcm.wordpress.org/plugins/cybernob-turnstile-for-cloudflare/#installation)
 * [Development](https://pcm.wordpress.org/plugins/cybernob-turnstile-for-cloudflare/#developers)

 [Support](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/)

## Description

**Cybernob Turnstile for Cloudflare** integrates [Cloudflare Turnstile](https://www.cloudflare.com/products/turnstile/)
into your WordPress site — the privacy-friendly CAPTCHA that stops bots silently,
without making real users solve puzzles.

This plugin is an independent, third-party integration and is not affiliated with
or endorsed by Cloudflare, Inc.

#### Protected locations

 * **Login form** — blocks brute-force and credential-stuffing attacks
 * **Registration form** — prevents automated account creation
 * **Comment form** — stops spam comments without Akismet
 * **Contact Form 7** — automatically protects every CF7 form on your site

#### Features

 * **Live status checker** — the settings page shows instantly whether your API 
   keys are valid and reachable
 * **Invisible mode** — widget stays hidden; the form auto-submits once the challenge
   passes silently
 * **Three themes** — Auto (follows system preference), Light, Dark
 * **Two appearance modes** — Always visible, or show on interaction only
 * **Clean uninstall** — all plugin options are removed on deletion, including multisite
   support
 * **Translation ready** — all strings wrapped in i18n functions with the correct
   text domain
 * **No bundled libraries** — only Cloudflare’s own CDN script is used; nothing 
   extra added to your site

#### Why Turnstile?

Unlike reCAPTCHA, Cloudflare Turnstile does not track users across sites or require
Google accounts. It is designed to be GDPR-friendly and invisible to legitimate 
users by default.

#### Getting started

 1. Create a free [Cloudflare Turnstile](https://dash.cloudflare.com/?to=/:account/turnstile)
    site widget
 2. Copy your **Site Key** and **Secret Key**
 3. Paste them into **Settings  Cybernob Turnstile** and save
 4. The live status indicator confirms everything is working

### External Services

This plugin connects to Cloudflare’s Turnstile service to display CAPTCHA challenges
and verify user responses.

 * **Service:** Cloudflare Turnstile
 * **When used:** When a protected form is loaded (widget script) or submitted (
   token verification). Only active after the administrator has entered API keys
   in the plugin settings.
 * **Data sent:** On verification — the Turnstile response token and the visitor’s
   IP address are sent to Cloudflare’s API endpoint.
 * **Endpoint:** https://challenges.cloudflare.com/turnstile/v0/siteverify

[Cloudflare Terms of Service](https://www.cloudflare.com/terms/) | [Cloudflare Privacy Policy](https://www.cloudflare.com/privacypolicy/)

## Installation

 1. Upload the `cybernob-turnstile-for-cloudflare` folder to the `/wp-content/plugins/`
    directory, or install directly via **Plugins  Add New** in your WordPress admin.
 2. Activate the plugin through the **Plugins** screen.
 3. Go to **Settings  Cybernob Turnstile**.
 4. Create a free Turnstile widget at [dash.cloudflare.com](https://dash.cloudflare.com/?to=/:account/turnstile)
    and copy your **Site Key** and **Secret Key**.
 5. Paste both keys into the settings page and click **Save Settings**.
 6. The live status indicator will confirm your CAPTCHA is configured and working correctly.

## FAQ

### Do I need a Cloudflare account?

Yes. A free Cloudflare account is required to generate Turnstile API keys. Sign 
up at [cloudflare.com](https://www.cloudflare.com/).

### Does this work with Contact Form 7?

Yes. If Contact Form 7 is installed and active, this plugin automatically injects
the Turnstile widget into every CF7 form and validates the token before mail is 
sent. No changes to your CF7 forms are needed.

### Does this work with WooCommerce?

WooCommerce integration is not included in the current version. It is planned for
a future release.

### Will this slow down my site?

No. The Cloudflare Turnstile API script is loaded asynchronously and deferred from
Cloudflare’s global CDN. It has a negligible effect on page load time.

### Is this GDPR compliant?

Cloudflare Turnstile is designed to be privacy-preserving. This plugin does not 
set any cookies itself and only stores your API keys in the WordPress database. 
Please review [Cloudflare’s privacy policy](https://www.cloudflare.com/privacypolicy/)
for their full data handling practices.

### The status checker shows “Connection Failed”. How do I fix it?

Your server cannot reach `challenges.cloudflare.com`. This is typically a firewall
or outbound network restriction on your hosting server. Contact your hosting provider
and ask them to allow outbound HTTPS connections to Cloudflare’s IP ranges.

### The status checker shows “Invalid Secret Key”. What does that mean?

The Secret Key you entered was rejected by Cloudflare. Double-check that you have
copied the full key correctly from your [Turnstile dashboard](https://dash.cloudflare.com/?to=/:account/turnstile)
and that it belongs to the correct site widget.

### Can I use invisible mode?

Yes. Enable **Invisible Mode** in the Widget Options section. The widget will be
hidden from users and the form will auto-submit once the challenge has passed silently
in the background.

## Reviews

![](https://secure.gravatar.com/avatar/7fcd94c07ac82beacb5a2c88f8d420bfb5add43bb9630deff398e87d4fd63c84?
s=60&d=retro&r=g)

### 󠀁[Very Simple and works perfectly](https://wordpress.org/support/topic/very-simple-and-works-perfectly-2/)󠁿

 [classihub](https://profiles.wordpress.org/classihub/) March 2, 2026

I was looking for a way to stop spam on my login and contact form without using 
reCAPTCHA. This plugin was super easy to set up — just paste two keys from Cloudflare
and done. The settings page even shows a live status so you know it's working. No
coding needed at all. Highly recommend it!

 [ Read all 1 review ](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/reviews/)

## Contributors & Developers

“Cybernob Turnstile for Cloudflare” is open source software. The following people
have contributed to this plugin.

Contributors

 *   [ Aneesh MK ](https://profiles.wordpress.org/aneeshmk/)

[Translate “Cybernob Turnstile for Cloudflare” into your language.](https://translate.wordpress.org/projects/wp-plugins/cybernob-turnstile-for-cloudflare)

### Interested in development?

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

## Changelog

#### 1.2.0

 * Added: Live CAPTCHA status checker on the settings page
 * Added: Inline error notice for failed comment CAPTCHA (replaces wp_die)
 * Added: Full multisite support in uninstall routine
 * Added: Contact Form 7 integration with class_exists guard
 * Improved: All user-facing strings are now translation-ready with correct text
   domain
 * Improved: Script and style handles namespaced to avoid conflicts (cnbtsl prefix)
 * Improved: wp_localize_script used for all JS data — no PHP inside JS strings
 * Improved: REMOTE_ADDR sanitized with FILTER_VALIDATE_IP
 * Improved: Output escaping hardened (wp_kses_post, wp_strip_all_tags)
 * Removed: Test Mode option
 * Fixed: Select dropdowns not preserving saved values on reload
 * Fixed: Checkboxes not saving when unchecked
 * Fixed: Plugin renamed to Cybernob Turnstile for Cloudflare for trademark compliance
 * Fixed: All function/class/define/option names updated to 6-character cnbtsl prefix

#### 1.1.1

 * Fixed invisible auto-submit mode
 * Fixed appearance option not saving correctly
 * Improved settings page layout

#### 1.0.0

 * Initial release

## Meta

 *  Version **1.2.0**
 *  Last updated **8 months ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 5.8 or higher **
 *  Tested up to **6.9.10**
 *  PHP version ** 7.4 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/cybernob-turnstile-for-cloudflare/)
 * Tags
 * [captcha](https://pcm.wordpress.org/plugins/tags/captcha/)[cloudflare](https://pcm.wordpress.org/plugins/tags/cloudflare/)
   [login](https://pcm.wordpress.org/plugins/tags/login/)[spam](https://pcm.wordpress.org/plugins/tags/spam/)
   [turnstile](https://pcm.wordpress.org/plugins/tags/turnstile/)
 *  [Advanced View](https://pcm.wordpress.org/plugins/cybernob-turnstile-for-cloudflare/advanced/)

## Ratings

 5 out of 5 stars.

 *  [  1 5-star review     ](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/reviews/?filter=5)
 *  [  0 4-star reviews     ](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/reviews/?filter=4)
 *  [  0 3-star reviews     ](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/reviews/?filter=3)
 *  [  0 2-star reviews     ](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/reviews/?filter=2)
 *  [  0 1-star reviews     ](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/reviews/)

## Contributors

 *   [ Aneesh MK ](https://profiles.wordpress.org/aneeshmk/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/cybernob-turnstile-for-cloudflare/)