Version: 3.7.0, by KeyCAPTCHA
Developer Last Online: Dec 2020
Category: Anti-Spam Options -
Version: 4.x.x
Rating:
Released: 01-16-2011
Last Update: 08-30-2012
Installs: 586
DB Changes Uses Plugins
Additional Files
No support by the author.
If you use KeyCAPTCHA please click "Mark as Installed" in the right menu "Mod Information" at this page.
If you like KeyCAPTCHA please click "Nominate for MOTM" in the right menu "Mod Information" at this page.
Please feel free to post your feedback about KeyCAPTCHA.
KeyCAPTCHA - Interactive CAPTCHA
Unlike many other captchas, it does not require any text typing.
Social Features:
You may support charity funds by enabling social advertising in KeyCAPTCHA. Also you can earn money by specifying social and commercial advertising shares in KeyCAPTCHA on your website.
Free Variants of Using KeyCAPTCHA:
Anti-spam protection. Social advertising. Monetization through commercial ads.
Anti-spam protection. Monetization through commercial ads.
Anti-spam protection. Social advertising.
Anti-spam protection without any ads.
Integration with vBulletin Human Verified Actions:
Register
Post
Contact Us
Search
Recover Lost Password
Blog comments
CMS comments
KeyCAPTCHA Unique Technologies
Instead of guessing symbols, our CAPTCHA offers visitors to complete an easy interactive task.
If KeyCAPTCHA hasn't been solved correctly, page refreshing doesn't take place that allows the user not to fill in the form repeatedly. It occurs since there is an initial checkup of CAPTCHAs in the KeyCAPTCHA servers before sending a filled-in form to the protected web server.
Our CAPTCHA also can be used even if your hosting provider blocks all outgoing connections.
Effective Anti-Spam Protection
The geo-cluster is used to operate KeyCAPTCHA service. Our geo-cluster includes the servers located in diverse European data centers. Some servers are in the special DDoS stable data centers in Switzerland to ensure trouble-free 24x7x365 mode service operation.
KeyCAPTCHA blocks spammers using anonymizers or anonymous HTPP proxies to distribute a hand spam.
There is no info of correct CAPTCHA solution in the visitor's browser.
CAPTCHA verification is processed by the KeyCAPTCHA servers.
Data transferring between your web server, the visitor's browser and the KeyCAPTCHA server is protected by a digital signature.
112 to 165 bit variable length password is used to generate a digital signature.
KeyCAPTCHA is a code executable in the visitor's browser. It is not a static image as used in typical CAPTCHAs.
Having received our CAPTCHA, it's virtually impossible to transfer it to third parties in order to run any task what spammers also do bypassing typical CAPTCHAs.
Probability of guessing the answer by submitting a random solution is 1 to 30,000,000.
KeyCAPTCHA-used images are transferred encryptedly.
Compatibility
KeyCAPTCHA supports two operating modes: Flash and HTML5. The KeyCAPTCHA HTML5 mode is used in most modern browsers, such as Mozilla FireFox, Google Chrome, Safari, and also used in iPhone and iPad. The Flash mode has been developed to be used in Internet Explorer and Opera. While loading, KeyCAPTCHA identifies its operating mode depending on the visitor's browser.
KeyCAPTCHA Affiliate Program
KeyCAPTCHA Affiliate Program allows publishers as well as any Internet user to collect incomes. For more information on The KeyCAPTCHA Affiliate Program, go to Our CAPTCHA Blog.
Two things for me render this product unusable for my site:
1. Failed registrations provide no visible feedback to the user.
If a registration fails, only if the KeyCAPTCHA puzzle is solved does the system alert the user of why the registration failed.
Under the default human verification system of vbulletin, the system immediately alerts the user of why a registration failed (mismatch password, invalid email address, incorrect CAPTCHA, etc.)
The 'registration' button is at the bottom of the registration page. When the user scrolls to the bottom to click the button, the KeyCAPTCHA image is no longer in view. The only alert KeyCAPTCHA provides for an incorrect puzzle solution is the display of a red crossed out circle. This red crossed out circle is not in view because the user has scrolled to the bottom of the page. So, the registration fails, and with no visible feedback provided, the user is left clueless as to why the page does nothing. The user can of course scroll back up, but the red crossed out circle displays for a couple of seconds and then disappears, most likely before a user scrolls back up. Eventually a new user would figure this out, as did I, but I would rather not frustrate new users that try to register - they might leave.
This would definetly work to stop spam bots, but also to frustrate new users
Hello, Rock Anthony,
Today we uploaded the new updated plugin for 3.7-4.x versions of vBulletin where this your request was met.
The user gets messagebox warning if it has solved KeyCAPTCHA incorrectly
<a href="https://vborg.vbsupport.ru/showpost.php?p=2183652&postcount=66" target="_blank">KeyCAPTCHA Plug-in Update/Reinstallation instructions from another thread</a>
(note it is the same plugin for vBulletin 4.x backward compatible with previous vBulletin versions)
KeyCAPTCHA Team is expressing its gratitude on twitter to every published/posted feedback.
For example, some of Tweets to the sites that posted in this and KeyCAPTCHA on vBulletin 3.8 Add-ons threads:
KeyCAPTCHA - Interactive CAPTCHA with Social Features Details »»
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DB Changes 
No support by the author.
04-11-2011, 04:56 AM
