內容簡介
總結：Fluent Forms 是一款免費且速度最快的 WordPress 表單建立外掛，提供多種 Captcha 選項。這外掛可以幫助您快速建立無痛苦的聯絡表單、訂閱表單或其他網站所需的任何類型的表單。
問題與答案：
1. Fluent Forms 提供了哪些 Captcha 選項？
- 圖片驗證碼（Image Captcha）
- 數學驗證碼（Math Captcha）
- 問答驗證碼（Question and Answer Captcha）
2. 透過 Fluent Forms，您可以建立哪些種類的表單？
- 聯絡表單、訂閱表單或任何網站所需的任何形式的表單。
3. Fluent Forms 提供了哪些功能？
- 拖放式聯絡表單建立工具
- 多欄位表單佈局
- 智慧條件邏輯表單欄位
- 條件式確認訊息等等。
4. 如何保護您的網站表單免受垃圾郵件攻擊？
- 透過 Google Recaptcha 的垃圾郵件保護功能。
5. 您可以在表單提交後配置要發生的事情嗎？
- 是的，您可以顯示成功訊息，或者將用戶重新導向到選定的 URL。
6. Fluent Forms 可以根據何種條件限制網站表單的可見性？
- 用戶角色、時間/日期範圍限制等。
7. 透過 Fluent Forms 提供的分析功能，您可以看到哪些類型的數據？
- 顯示次數及潛在營業機會等。
外掛標籤
開發者團隊
② 後台搜尋「Custom Captcha Field for Fluent Forms」→ 直接安裝（推薦）
原文外掛簡介
Adds a “Custom Captcha” field to the Fluent Forms editor with three challenge types:
Image captcha — a 6-character code rendered as an image, with customizable text color and a transparent background by default so it blends with any form design
Math captcha — a simple arithmetic question rendered as an image
Question and answer — you define the question (field label) and the expected answer
Challenges are single-use and expire after 15 minutes. Answers are stored server-side via WordPress transients — nothing is exposed to the browser except the image itself. Visitors get a refresh button to request a new challenge, and the captcha automatically renews after each AJAX submission, so it also works on cached pages.
On top of the captcha you get two extra spam defenses:
Time-trap (optional, off by default) — submissions completed faster than a human possibly could are rejected via an HMAC-signed timestamp; enable it and set the minimum submit time per field
Disposable email blocking (optional, on by default) — rejects submissions where an email field uses a temporary/disposable email domain like mailinator.com or yopmail.com; extend the list with the ffc_captcha_blocked_email_domains filter
Everything runs on your own server: no external captcha service, no API keys, no cookies, no visitor data sent anywhere.
Requirements
Fluent Forms is required. The PHP GD extension is recommended for image rendering (with a plain-text fallback when unavailable).
How To Use
Activate the plugin
Edit a form in Fluent Forms — a new “Custom Captcha” field appears in the editor
Drop it into your form and pick the captcha type in the field settings
Optionally set the text color, background color (RGB values like “68, 68, 68”, or “transparent”) and error message
