Active installations100Adoption metric — not a quality score
WordPress.org rating5.0 / 5 from 1 ratings
Official packageDirect from WordPress.org
Repository metrics are context, not quality scores. Active installations measure adoption and can strongly reflect a plugin’s age and historical popularity. Ratings, recent updates and “Tested up to” metadata also do not guarantee modern code, error-free operation, security, feature completeness or suitability for a particular site. Why active installs don’t tell the whole story →
WP PlugIndex currently records Custom Captcha Field for Fluent Forms version 2.0.0 as active, updated 3mo ago and tested up to WordPress 7.0.
Overview
About this plugin
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
WordPress.org metadata
Plugin tags
Topics listed for this plugin in the WordPress.org directory.
fluent forms
math captcha
antispam
spam
Compatibility & maintenance
Compatibility & maintenance
Tested up to WordPress 7.0
Not yet marked as tested with WordPress 7.1. WordPress.org currently lists Tested up to 7.0.
Current WordPress releaseWordPress 7.1
WordPress.org Tested up to7.0
Minimum requirementsWordPress 5.0 · PHP 7.4
Update activity9 Jul 20263mo ago
“Tested up to” is directory metadata supplied by the plugin author. WP PlugIndex does not turn an older declaration into a claim that the plugin is incompatible.
Changes recorded by WP PlugIndex
Recent tracked changes
No tracked version or compatibility changes have been recorded by WP PlugIndex yet.
Tracking & source
WP PlugIndex tracks public WordPress.org directory metadata and records selected version, compatibility and availability changes as they are detected.
