# Random image based verification for new user creation

**URL:** <https://www.ruby-forum.com/t/random-image-based-verification-for-new-user-creation/131947>\
**Category:** Rails\
**Created:** [March 14, 2008, 5:09pm UTC](https://www.ruby-forum.com/t/random-image-based-verification-for-new-user-creation/131947 "2008-03-14T17:09:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ron](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/ecae2f/32.png) [@ron](https://www.ruby-forum.com/u/ron)\
**Post date:** [March 14, 2008, 5:09pm UTC](https://www.ruby-forum.com/t/random-image-based-verification-for-new-user-creation/131947/1 "2008-03-14T17:09:21Z")

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Hi all,

I’m creating an email list managed by my CMS. I’m wondering if people  
had any thoughts about securing it?

I’m just concerned that my application server might be overwhelmed by  
requests to add to the list by a spider, etc.

Am I being overly concerned or is that a real possibility? I was  
thinking of adding an image with a random sequence of numbers or  
letters that people needed to type in a box to prevent this. Does  
anyone have any experience with those sorts of things?

Thanks,

Ron

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**Author:** ![ron](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/ecae2f/32.png) [@ron](https://www.ruby-forum.com/u/ron)\
**Post date:** [March 14, 2008, 5:45pm UTC](https://www.ruby-forum.com/t/random-image-based-verification-for-new-user-creation/131947/2 "2008-03-14T17:45:41Z")

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I haven’t implemented this service yet, but have thought about using  
Captchator. Have you looked into Capthchator? [http://captchator.com/](http://captchator.com/)

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**Author:** ![ron](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/ecae2f/32.png) [@ron](https://www.ruby-forum.com/u/ron)\
**Post date:** [March 15, 2008, 4:51pm UTC](https://www.ruby-forum.com/t/random-image-based-verification-for-new-user-creation/131947/3 "2008-03-15T16:51:16Z")

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On Mar 14, 4:45 pm, Becca G. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
wrote:

> I haven’t implemented this service yet, but have thought about using  
> Captchator. Have you looked into Capthchator? [http://captchator.com/](http://captchator.com/)

I’ve used recaptcha before and it seemed fine. There’s several ruby  
gems for integrating with it. I used [http://www.loonsoft.com/recaptcha/](http://www.loonsoft.com/recaptcha/)  
you pretty much just have to call the helper function to insert the  
right stuff in your view and validate\_recap in your controller.

Fred