• WMS Captcha
    • WMS Captcha

      A Captcha (Completely Automated Public Turing test to tell Computers and Humans Apart) is a program that can generate and grade tests that humans can pass but current computer programs cannot.  Adding this to a contact form on your site will prevent some of the spam generated by automated software programs designed to crawl the internet and fill in forms, as unlike a human, the software would be unable to pass the test.

      The site visitor completes the form by entering the characters that have been distorted in the image. Only if the input is correct will the form be submitted successfully.

      This WMS module allows for complete customisation with no third party involvement. Below we have outlined the various types of Captcha you could have functioning in conjunction with your own online forms along with some client examples.

  • Client Examples
    • The majority of Ezone clients have implemented a Captcha, in some shape or form with many choosing to have an invisible Captcha. Depending on the form in question, any number of styled Capchas might be suitable for your website.

      Please visit our client sites to see how they have styled our Captcha Module as part of their online form submission process. 

Captcha Module

  • Full colour and size styling
  • Length of the generated string
  • Full control over the amount of noise, scratches and text bending
  • Choice of case sensitivity
  • Choice of characters that are available for random string generation
View the sample »




Invisible Captcha

The Invisable Captcha, is an email validation control that requires no user input. The control performs arthimetic on two randomly generated numbers and if correct, the form is submitted.

This is based upon the idea that most spam bots do not currently have the ability to evaluate JavaScript and thus will not be able to submit the form correctly.

If a user has JavaScript disabled then a question is displayed on the screen, allowing the user to type in the correct answer. Below is an image of how the control would look in a JavaScript disabled browser.

Captcha Image

Below is an example form, which uses the Invisible Captcha Control.

Please add 6 and 7 and type the answer here:

Honeypot Captcha

When a spam bot comes across a form, they work through the form and fill out every field. The idea of the Honeypot captcha is to incorporate a hidden field into the page which should remain empty if completed by a person rather than a spam bot.

When the form has been submitted, it will only pass validation if the hidden field remains empty. However, if this field contains content then validation fails and the form is not submitted.

Below is an example form using the Honeypot Captcha control.


For demonstration purposes, click on the "Show" button below to reveal the hidden field. If you complete the field and click on submit the form will not validate.

Pricing

The Captcha is an Ezone Basic Module. Please contact Ezone direct (or your nominated Ezone Partner) for further information on the cost applicable to your requirements.

Requirements

  • ASP.Net 2.0 enabled hosting environment.