This module gives you pre-moderation function for some comments that includes bad words or disallowed urls. Bad comments will have unpublished status and have to be approved manually on page 'admin/content/comment/approval'. All other comments will be published as usual.
If all comments already pre-moderated you don't need this module.
This is a simple module to fight against spam submissions on a site. This module replaces form actions with a dummy URL which is then replaced during form submission using javascript. All spambot submissions (from bots that don't execute javascript) will go to a blackhole. Will require javascript to work for normal users.
The module allows boost caching of Drupal pages with forms with CAPTCHA for long durations without running into the "Session reuse attack detected" error. The module allows forms with CAPTCHA to be cached even after the CAPTCHA session expires by allowing the CAPTCHA to be re-loaded using AJAX when a user starts filling in the form.
The Yandex.Captcha module uses the Yandex CleanWeb web service to improve the CAPTCHA system. For more information on what Yandex.CleanWeb is, please visit: http://api.yandex.ru/cleanweb/
Yandex.Captcha depends on the CAPTCHA module.
The module allows you to use Yandex.CleanWeb to check for spam comments and posts in the forum, and also allows you to extend this functionality to other forms by using the Yandex.CleanWeb API.
Prevent spam before it happens.
This module is currently able to enqueue IP addresses of your visitors. It automatically sends them, 15 at a time, as specified by the documentation of the API it uses, to the webservice of http://www.stopforumspam.com/ in cron.
With phonewithcomputer.com service, we use phone for CAPTCHA service.
It provides a unique way to authenticate user.
Phone CAPTCHA depends on the CAPTCHA module.
A patch is required for CAPTCHA 7.x-1.0 https://drupal.org/node/918856#comment-7583533
My main motivation to write this module was having thousands of comments and nodes published after a week off. What it is worst, a single spammer can affect your server, even force it down because of publishing some millions of comments/nodes in your site.
Said that, this is Not Just Another Spam Module which detects spam, but a bot itself which detects if the user is a possible spammer and take some actions, like:
