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DNN Community Blog

The Community Blog is a personal opinion of community members and by no means the official standpoint of DNN Corp or DNN Platform. This is a place to express personal thoughts about DNNPlatform, the community and its ecosystem. Do you have useful information that you would like to share with the DNN Community in a featured article or blog? If so, please contact .

The use of the Community Blog is covered by our Community Blog Guidelines - please read before commenting or posting.

Major Changes in Membership/Roles/Profile (2) - Captcha Control

As part of the Membership enhancments for 3.3/4.1, I have just finished updating the repository with a new "Captcha" Control.  So you are asking, what is a Captcha Control.  In simple terms it is a Server Control that requires the "user" to enter a randomly generated  "Human Readable Security Code".


Captcha is often used in e-commerce situations, and to stop dictionary based denial of service attacks.

The new Captcha control will be available as part of the core, so any module could use it (for example Forums or Blogs to stop Forum and Blog spam).

If you would like more information on Captcha:

We will be adding an Administrator option to include the use of Captcha in the new "SignIn" and "Register" controls.


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