Captcha

Adds CAPTCHA anti-spam methods to WordPress on the comment form, registration form, login, or all. In order to post comments or register, users will have to type in the code shown on the image. This prevents spam from automated bots. Adds security. Works great with Akismet. Also is fully WP,...

A CAPTCHA for your comment system to prevent unwanted spams. Prevent automated spams by bots and most important naughty peoples. It's simple and yet secure.Installation :Extract the zip file content after download. Navigate into the directory and COPY the directory name "simpleCAPTCHA" (v1.4.0b...

This plugin adds a CAPTCHA field to your comment form, using the API provided by the Really Simple CAPTCHA plugin to provide the CAPTCHA image and validation.This plugin is fully functional, but is mostly intended to be a "proof of concept" for other plugin developers who may want to use the...


Platforms: PHP

Confident CAPTCHAd-OC?D? is a unique, image-based CAPTCHA solution that stops spam and bots in a way that is easy and intuitive for your website visitors. Rather than forcing people to decipher warped and distorted characters or words, Confident CAPTCHA presents the visitor with a grid of...


Platforms: PHP

ImHuman is a new way of asking "are you a human?" question to your website visitors. It is designed to be easy, fun, secure and user friendly than most of the other captcha systems. Security and fun grows a little bit more everyday because it uses the ImHuman globalized API and you do not need to...


Platforms: PHP

Prevent registration spam and bots login by adding custom captcha tests in the registration page and/or login pageFeaturing 5 different and customizable captcha algorithms with possibility to set your own random characters font, styles, colors background and moreFor a working demo se login and...


Platforms: PHP

Prevent registration spam and bots login by adding custom captcha tests in the registration page and/or login pageInstallation :The plugin can be installed in 3 easy steps:Download the zip plugin.Decompress the .zip archive into your plugins directory (/wp-content/plugins/) keeping zip folder...


Platforms: PHP

General InformationKeyCPTCHA is a free service providing effective protection by means of highly attractive and interactive CAPTCHA. Also, it can entertain your visitors with a nice and pleasant CAPTCHA game. A visitor of your site is offered not to guess the CAPTCHA content but restore some...


Platforms: PHP

KeyCPTCHA is a free service providing effective protection by means of highly attractive and interactive CAPTCHA. Also, it can entertain your visitors with a nice and pleasant CAPTCHA game.Our CAPTCHA protects the following forms: * Registration form * Comment form * Login form * Lost password...


Platforms: PHP

AntiBot Captcha - simple good-looking, but well-protected plugin against spam robots for your blog commentsInstallation : 1. Upload the whole AntiBotCaptcha directory into your WordPress plugins directory. 2. Activate the plugin on your WordPress plugins pageUninstalling: 1. Deactivate the...


Platforms: PHP

This module provides an unobtrusive form anti-spam method as an alternative to an HCI challege-response test such as a CAPTCHAIt differs from other spam blocking modules in two ways * Unlike Captcha and Re-Captcha no additional human-computer interaction is required. * Unlike Mollom or Akismet,...


Platforms: PHP

Animal Captcha is a lightweight plugin for WordPress that adds a captcha control on comments and register with a nice picture of an animal than any man knows, and yet a robot is unable to identify. It's nice, comfortable and very safe. Languages: English, Spanish, German, French and Portuguese....


Platforms: PHP

Buhsl Captcha is a very simple, but powerful plug-in that helps you to prevent spam. Plug-in don't use COOKIES or SESSION. So there is no annoying messages like "You should enable cookies" for visitors. Plug-in use hashed captcha code value that will be comparing with entered captcha value and...


Platforms: PHP

There are a lot of great plugins to prevent spam but especially the effectiv captcha images can annoy your human visitors. Geo Captcha uses the knowledge that a lot of spam is caused from a few countries and prevents them from spamming.Visitors from the countries on your whitelist will never see...


Platforms: PHP

Adds Numerical addition CAPTCHA anti-spam methods to WordPress on the comment form. In order to post comments, users will have to type in the phrase shown on the addition. This can help prevent spam from automated bots.installation : 1. Upload the wp-num-captcha folder to the...


Platforms: PHP

Show CAPTCHA protection on selected forms after specified number of unsuccessful form submit attempts has been made.You can control thresholds for CAPTCHA After submit threshold, flooding threshold (per machine IP) and global flooding threshold. You can also select for which CAPTCHA protected...


Platforms: PHP

The Egglue CAPTCHA module uses the Egglue Semantic CAPTCHA web service for generating over 10,000 knowledge-based, accessible CAPTCHA challenges on a Drupal site. The CAPTCHA module is required.For the example CAPTCHA challenges, correct responses can be 'spread' and 'play' or 'cut' and...


Platforms: PHP

EnMask Captcha is based on encrypted text and paired with matching web fonts so user will see clearly the challenge text while the spam programs see the underlying encrypted text. Users will have much better Captcha experience then trying to guess the difficult twisted image based Captcha...


Platforms: PHP

Smart invisible captcha for wordpress comments. Visitors of your website don't need to enter letters and numbers. This small plugin automatically 100% protects your website from spam in comments..installation : 1. Upload file invisible-captcha.zip to the /wp-content/plugins/ directory and...


Platforms: Python

Django Simple Captcha is an extremely simple, yet highly customizable Django application to add captcha images to any Django form.


Platforms: *nix