Spam Prevention

Use this plugin to spice up your posts with video comments instead of boring text comments. Simply start by creating a new post, the video comment feature is added automatically at the end of the post.

This plugin places two-set widget. First, a sleek 'record video' button, and a video carousel at the end of all of your posts. Official plugin from FranklyMe.

It'll be shown to your audience once your post goes live, where they can take a video selfie (velfie) that'll be viewable by everybody on your site.

This module is to fight against with bots. It is not another Captcha module but acts like a Captcha.

This module uses the Impression module to decide whether a visitor is bot or real human.

How is it working?

It is using mouse, keyboard event and mobile device screen touch event.

A.
This module only provide two http/ajax api:

1).
Initialize the captcha session firstly:

URL : http://localhost/ajax/image_captcha_sid
return the captcha image url and the sid.
2).
get captcha image src
URL: http://localhost/ajax/image_captcha_img/[sid]

B.
Another simple way:
The client only request the URL:

This module provides a facility to editors/content publishers, to check embedded link's validity before publishing the content. If the content has broken links in the body field, then it won’t get published.

It provides a process which would check link by visiting the destinations and evaluating the HTTP Response code.

If we compare Linkchecker detects broken links from content after save.

The CAPTCHA that teaches South Africa
the 11 official languages one word at a time.

Try it out at:
http://icaptcha.co.za

To use simply enable the iCaptcha module and click on the "Add iCaptcha to this form" link at the bottom of forms!

Description

Form Protect is a tiny, simple, non-invasive spam protection for forms. The protection is based on the assumption that spam bots are not running JavaScript when loading targeted forms.

Comparing to other similar modules, this one is only redirecting the submit to a blind page when JavaScript is disabled. Similar modules:

This module does the same thing that Simple Regex Filter module does, except it applies filters to the author of a node / comment.

Image-Recognition CAPTCHA provides a CAPTCHA that challenges the visitor to recognize a subset of images within a set of images. For example, the visitor may be challenged to identify all the images with trees.

The module has no dependency on external services. This is a difference from some other modules providing image-recognition CAPTCHAs, such as reCAPTCHA.

IP White-list module allows the user to provide access on particular node to particular set of IP address(s).
IP White-list Module provides an interface to the admin user to provide the range IP address to allow them access to a specific node.
The module allows the administrator to specify a redirect URL as well in-case the specific page is accessed by a non-white-listed IP.