內容簡介
ZigZag Image Captcha for Contact Form 7 是一款強大的圖像驗證碼外掛，旨在保護您的聯絡表單免受垃圾郵件和機器人攻擊。它生成具有鋸齒形扭曲的驗證碼圖像，讓自動化機器人難以破解。
【主要功能】
• 鋸齒形扭曲圖像驗證碼
• 隨機字元及背景噪音
• 一鍵刷新圖像
• 會話基礎的安全驗證
• 自動更新的過期計時器
• 原生 Contact Form 7 錯誤訊息
外掛標籤
開發者團隊
② 後台搜尋「ZigZag Image Captcha for Contact Form 7」→ 直接安裝（推薦）
原文外掛簡介
ZigZag Image Captcha for Contact Form 7 adds a powerful, image-based captcha field designed to protect your forms from spam and bots.
The plugin generates a zig-zag distorted captcha image with background noise, dots, lines, and randomized angles — making it extremely difficult for automated bots to solve.
It integrates seamlessly with Contact Form 7, works fully with AJAX submissions, and displays native CF7 validation errors.
🔒 Features
Secure zig-zag distorted image captcha
Random characters with noise, distortion, and angled letters
One-click image refresh
Session-based secure validation
Expiration timer with auto-regeneration
Native Contact Form 7 error messages
Works with AJAX and non-AJAX forms
Lightweight and optimized
No external API required
Fully responsive and accessible
⚙️ Notes
Requires Contact Form 7 to be installed and active
No third-party services or tracking
Fully self-hosted captcha generation
How to Use
Open Contact Form 7 → Edit Form
Insert the captcha field where you want it to appear: [imagecaptcha* cf7_image_captcha]
Save the form
Done! 🎉 The captcha will automatically validate submissions
The * makes the captcha field required.
