Joomla! Extensions Directory



Site Security

The plugin protects against spambot attacks on either registration and login process by preventing spambots from register/login. It checks against several databases, such as,,, and The plugin was initially written by Robert Kuster -

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For support and feature requests, please visit or contact us at

Please set your e-mail on the e-mail whitelist! If not it may happen that you are locked out, even as admin!

It can be selected by parameters which:

  1. Databases to search


  1. Process to check

- registration
- registration and login

  1. Information to check

- IP
- username
- e-mail

  1. Additional notification options

- administrator notification via e-mail
- store information about spambot in Joomla! database

  1. Whitelist for e-mail and IP, which shall never be checked

- English
- German

Note: Plugin uses php curl extension for proper working. Curl is available since php 4.0.2.

Note: Plugin is not tested with community third party extensions

Note: Please put your administrator e-mail to the e-mail whitelist!

Note: Spambot database on undisposable does no longer exist. Please set plugin parameter "" to "no" if your plugin version is lower than 1.0.3 (Joomla! 1.5) or 1.1.3 (Joomla! 1.6, 1.7, 2.5)

Release history:
Oktober, 18, 2013
Changes for version 1.1.11 (Joomla 2.5): E-Mail Blacklist, Component to manange suspicious users and spambot data

June, 19, 2013
Changes for version 1.3.10 (Joomla! 3.0) and 1.1.10 (Joomla 2.5): Refactoring and minor bug fixing

April, 11, 2013
Changes for version 1.3.9 (Joomla! 3.0) and 1.1.9 (Joomla 2.5)
Improvements in finding all super administrators
Integration of joomla updater (you can use the update function of extension manager to find and install updates)

March, 21, 2013
Changes for version 1.3.8 for Joomla! 3.0 and
Changes for version 1.1.8 for Joomla! 2.5
New parameters to controll admin e-mail notification about spam attacks more specificly.
Always include full user information (username, e-mail and ip) when logging spammer to database (some of these informations haven't been stored in previous versions).
Changes for version 1.1.8 for Joomla! 2.5
Allow generic e-mail whitelist
E-mail whitelist is now a textarea with much more space
Check cUrl availability during installation(which was already availble for Joomla 3.0)

January 14, 2013
New Version 1.3.7 for Joomla! 3.0
Compatibility for Joomla! 3.0
Allow generic e-mail for e-mail whitelist
Make inputfield for e-mail whitelist bigger
Throw a warning if cUrl is not available

September 10, 2012
Changes for Version 1.0.7 (Joomla! 1.5)
Changes for Version 1.1.7 (Joomla! 1.6, 1.7, 2.5)

Excellent Plugin

Posted on 14 May 2014

Excellent Plugin, We are really appreciate the efforts of developers for creating such wonderful and very useful plugin....Hats up to you guys..

Thanking you

A must have!

Posted on 07 November 2013

This plugin has eliminated automated spam for me. It's able to perform several types of checks, works flawlessly, and is very easy to setup.

If your website has any kind of public/guest write access (guestbook, forum, contact form etc), then this plugin is something you should install.

The only flaw, though a small one most of us can live with, is that it does not show a user, whose login attemt is rejected, why he cannot log in. So the user may keep trying various passwords etc, even though the password was correct.

brilliant spam solution

Posted on 12 August 2013

stops spam at the source. When a known spam user attempts to register or login to your site, this extension will deny the user access and notify admin about what happened.

I'd like thanking this great job to the authors.I haven't tried all the options yet, but it went ok with my spam-register problem.

It Works!

Posted on 25 May 2013

We had a serious problem with spam posts and spam logins in our Kunen forum.

This extension is the only one that gave us a solution.

It really stoped spammers being able to login and post messages.

Thank you!!!

Spambots are a huge issue, this kind of security ought to be part of Joomla's framework. Does a fantastic job, lets me know when any known spammer IP attempts to register, etc. Love this extension.

Realy great job

Posted on 27 March 2013

We had massive problems with automated spambot user registrations.

After installing this plugin 99,5 % of Spammbots can't register any more.

Thank you!!

Perfect job

Posted on 17 March 2013

After my forum got overwhelmed with spam I've decided to try this plugin to block the spammers already at registration level.

I have to say I'm impressed with the result. During the last two weeks the plugin catched almost 1500 attemps, all with the StopForumSpam engine.

I've even disabled the captcha to see how many go through.

A few managed to register but those usually got caught by another spam extension.

I can live with that :-)


Very Impressed

Posted on 28 February 2013

It works beautifully; it stopped 15 spambots in one day.

I'm used to having to figure out why an extension doesn't work with my configuration, what needs to be tweaked, where else I have to go for keys, figure out why they don't work, etc.

With this extension, all I had to do was install it and check a couple of settings, and then it just worked.

This should be a part of the core functionality of joomla!

This one really works!

Posted on 15 January 2013

Stopped the spam attacks overnight.

I tried others, but no other catches the spammers so efficiently during registration as this. Most spammers are stopped via the StopForumSpam engine. So make sure that is enabled.

Big thank you to the developer.



Free | Forms | Aicha Vack
2.5 3
27 reviews
Visforms is a native form generator for Joomla! 2.5.x and Joomla! 3. It allows you to generate forms without programmation and makes a point of protecting your forms against spambots. It provides you with an adapted form of our Joomla! plugin spambotCheck. Just install plgvisformsspamcheck, that is attached in the installation zip file, enable the plugin and set up it's configuration. Visforms provides you with captchas which you can use alternatively or additionally. Visforms gives you further on the option to save form data in database and to export saved data into csv format. Visforms works fundamentally similar to the Joomla 1.5 extension CK Forms from Cookex Developpment Team so that you may even be able to import your CK Forms data from your Joomla 1.5 website (see below). Visforms has good security features such as php validation of submitted data (in case JavaScript is disabled or doesn't work properly with the mootools version used by Joomla 2.5 as is the case for Firefox 2.0). It uses a token to prevent from CSRF (Cross-site request forgery). It allows you to restrict uploads via file extension and file size. Visforms provides you with substantial description for every single parameter, that helps you configure your form. Visforms supports Joomla! multi language websites natively and has complete language support in backend and frontend.
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3 reviews
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SpambotCheck Extended

SpambotCheck Extended

Free | Site Security | Aicha Vack
2.5 3
0 reviews
This Joomla! System Plugin is a extended version of our popular Joomla! User Plugin plgSpambotCheck. It hooks into several Joomla! Extensions such as the comment system of K2 and prevents spambot attempts. Plugin checks e-mail and/or IP against online spambot databases and prevents - acording to the results of that check - spambot actions. It has many options for indivudial configuration. For now it only works with K2 but I plan on extending it on other Joomla! Extension too. Aug., 19. 2013: Version 1.0.1 Plugin Spambotcheckextended can now be used to protect Joomla! contact forms without ReCaptcha.


Aicha Vack
Date added:
Nov 18 2014
GPLv2 or later
Free download
Uses updater:
Download DemoNot available Support DocumentationNot available
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