checkify

Checkify helps WordPress site owners reduce CAPTCHA friction by using privacy-first human verification.
Instead of asking visitors to solve puzzles, Checkify lets visitors complete a verification flow and return a verification result to the WordPress site. This can be used on pages, forms, or custom flows where the site owner wants to request human verification or age verification.
Checkify is designed around privacy-first verification. The WordPress site receives a verification result, not unnecessary personal identity data.
<h4>Features</h4>
<ul>
<li>CAPTCHA alternative for WordPress</li>
<li>Privacy-first human verification</li>
<li>Age verification profiles (18+, 21+, 25+)</li>
<li>Site connection using a QR code</li>
<li>Local QR rendering in the browser</li>
<li>Shortcode support using [checkify_verify]</li>
<li>Live Checkify API integration</li>
<li>No external QR code generation service</li>
</ul>
<h4>How it works</h4>
<ol>
<li>Install and activate the Checkify plugin.</li>
<li>Open the Checkify settings page in WordPress.</li>
<li>Generate a connection QR code.</li>
<li>Scan the QR code in the Checkify app to connect your WordPress site.</li>
<li>Copy your Checkify Pass ID and paste it into the plugin settings.</li>
<li>Add [checkify_verify] to the page where you want to show human verification.</li>
</ol>
The shortcode creates a verification request, renders a QR code locally in the visitor’s browser, polls for verification status, and stores a temporary local verification result for that visitor.
<h3>External services</h3>
This plugin connects to Checkify services to provide human verification.
Service used:
<ul>
<li>Checkify API: https://checkify.me</li>
<li>Checkify website: https://checkify.me</li>
</ul>
The plugin connects to Checkify when:
<ul>
<li>A site administrator creates a site connection claim.</li>
<li>A site administrator polls the status of a site connection claim.</li>
<li>A connected WordPress site creates a verification request.</li>
<li>A connected WordPress site checks the status of a verification request.</li>
<li>A connected WordPress site confirms a completed verification result.</li>
</ul>
The plugin may send the following data to Checkify services:
<ul>
<li>The WordPress site domain.</li>
<li>A Checkify site identifier.</li>
<li>A Checkify installation identifier.</li>
<li>A Checkify Pass identifier configured by the site administrator.</li>
<li>Verification request identifiers.</li>
<li>Verification status tokens.</li>
<li>Request timestamps.</li>
<li>Cryptographic signatures used to authenticate the WordPress installation.</li>
</ul>
The plugin does not use an external QR code generation service. QR codes are generated locally in the visitor’s browser using the bundled QRCode.js library.
Checkify privacy policy: https://checkify.me/privacy-policy
Checkify terms: https://checkify.me/terms_and_conditions
<h3>Third-party libraries</h3>
This plugin includes QRCode.js by davidshimjs to render QR codes locally in the browser.
Library: QRCode.js
Source: https://github.com/davidshimjs/qrcodejs
License: MIT
The QRCode.js license is included in <code>qrcode-license.txt</code>.

Checkify

Replace CAPTCHA with privacy-first human verification from Checkify.

Costel Tudose

Protect your Contact Form 7 forms with Google reCAPTCHA V2, Google reCAPTCHA V3, hCAPTCHA, or Cloudflare Turnstile.
Easy integration and supports multiple forms on a single page.
<h3>Four CAPTCHA Options</h3>
Choose the CAPTCHA provider that works best for you:
<ul>
<li>Google reCAPTCHA V2 — The industry-standard “I’m not a robot” checkbox, trusted by millions of sites.</li>
<li>Google reCAPTCHA V3 — The industry-standard invisible score-based verification, trusted by millions of sites.</li>
<li>hCAPTCHA — A privacy-first alternative that offers robust bot protection while keeping user data secure.</li>
<li>Cloudflare Turnstile — A modern CAPTCHA that verifies users in the background, only requiring a simple click if the visitor appears suspicious.</li>
</ul>
<h3>Simple Setup</h3>
<ol>
<li>Sign up with your chosen CAPTCHA provider and grab your Site Key and Secret Key.</li>
<li>Paste them into CF7 Captcha in your WordPress admin.</li>
<li>Add protection to any CF7 form in seconds using the shortcode provided in the same settings page.</li>
</ol>
<h3>Customizable Appearance</h3>
Each CAPTCHA widget supports customization options directly from the shortcode:
<ul>
<li>Size — Choose between normal and compact to fit your form layout.</li>
<li>Theme — Switch between light and dark themes (or auto for Turnstile) to match your site’s design.</li>
<li>Language — Force any CAPTCHA to render in a specific language for your audience.</li>
</ul>
All options are combinable, so you can mix and match to get the exact look you need.
<h3>Submission Insights (NEW in v0.1.7)</h3>
Go beyond just blocking spam. Submission Insights gives you full visibility into every form submission:
<ul>
<li>Sender IP — See the IP address of the person who contacted you.</li>
<li>Source Page — Know exactly which page on your site the form was filled out on.</li>
<li>Device & Browser — Get technical details about the sender’s setup.</li>
</ul>
<h3>🚀 Want More? Upgrade to CF7 Captcha Pro</h3>
This free version gives you solid CAPTCHA protection. But the smartest bots are already solving CAPTCHAs.
CF7 Captcha Pro adds six extra layers of invisible spam defense on top of what you already have here, plus a full set of tools to capture and act on every lead your forms collect.
<h3>What you get with Pro</h3>
6-Layer Spam Defense — stops 99.9% of spam without ever bothering your visitors: 
– Advanced Honeypot — invisible trap fields with names that regenerate every 24 hours. 
– Time Limit Validation — bots submit in 0.2 seconds. Humans take 15–30. This blocks anything that moves too fast (or stays too long). 
– Rate Limiting — caps submissions per IP so bot networks can’t flood your inbox or burn through your email quota. 
– Geographic Blocking — whitelist only the countries you serve, or blacklist known spam regions. 
– IP Pattern Blocking — block single IPs, wildcards, CIDR ranges, or entire subnets when you know exactly where an attack is coming from. 
– Word Filter — scans every submission for spam keywords, phishing URLs, and known scam phrases before it reaches you.
Lead Recovery — 70% of people who start filling out a form never submit it. Pro captures their data in real-time as they type, so you can follow up on leads that would otherwise vanish.
Database Storage & Export — every submission is saved with full metadata (IP, browser, referrer, timestamp). Export to CSV, Excel, JSON, or PDF whenever you need it. No more lost leads if your email fails.
Webhooks — send form data instantly to any URL. Connect to Zapier, Salesforce, Slack, Google Sheets, or any custom API. Multiple webhooks per form, with retry logic built in.
Mailchimp Integration — submissions automatically added to your Mailchimp lists. Field mapping, tags, opt-in handling.
Twilio SMS — receive instant alerts for every submission or send automated SMS replies to your clients.
Comprehensive Logging — every spam block, webhook call, and integration event is logged. Debug any issue in minutes instead of hours.
👉 <a href="https://lukasapps.de/wordpress/plugins/cf7-captcha-pro/" rel="nofollow ugc">Get CF7 Captcha Pro</a>

Contact Form 7 Captcha

Protect your Contact Form 7 forms with Google reCAPTCHA V2, Google reCAPTCHA V3, hCAPTCHA, or Cloudflare Turnstile.

Checkify vs Contact Form 7 Captcha