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JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

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We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.


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    What are best practices for protecting against spambots getting into yo

    Asked by Steven on March 23, 2014 at 07:55 AM

    What are best practices for protecting against spambots getting into your web form? Can you elaborate why Captcha should not be used?



    This is a re-post of a comment on 10 Best Practices for Web Forms

    web form spambots
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    JotForm Support

    Answered by ashwin_d on March 23, 2014 at 09:25 AM

    Hello Steven,

    Please be noted that captcha fields is only effective if there is an automated attempt to send spam submissions. It cannot prevent, if there is a human attempt to send spam submissions.

    You can take advantage of our "Unique Submission" feature to block multiple submissions from one system or one IP address by setting the "Loose check" or "Strict Check" respectively. The following guide should help you set unique submission:  http://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form

    You can also use our "Unique Question" feature to prevent from submitting duplicate submissions. Example: You can set one of your forms question (like cell number or email address) to be a unique question. This will not allow a user to use the same cell number or email address to submit your form. The following guide should help you:  http://www.jotform.com/help/223-How-to-set-Form-Limits-Based-on-a-Unique-Question

    Hope this helps.

    Do get back to us if you have any questions.

    Thank you!