erd is similar to captcha in the sense that it provides some type of challenge to the end user prior to submitting a form. The challenge must be completed and correct before you will see the "goodies" of the form, including the submit button. It was developed by the team at 247coding.com many years ago and has been used to help prevent robotic submissions of forms. Werd is not guaranteed to thwart all robo-type submissions but is a first line of defense against it.

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