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

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

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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    How can I restrict by IP address?

    Asked by pouzo on June 10, 2010 at 05:13 PM
    How can i allow one post per IP address so i dont get spammed or how can i block and Ip address , Thank you
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    JotForm Founder

    Answered by aytekin on June 11, 2010 at 01:53 AM
    OK, allowing only one post by IP and preventing spam are completely different things. If you would like to prevent spam add CAPTCHA to your form. It is under "Power Tools".

    If you would like people to only submit your form once, then:
    1. Click on "Setup & Share" on the toolbar tabs
    2. Click on Preferences
    3. Change "Unique Submission" to "Strict Check"
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    Answered by pouzo on June 11, 2010 at 01:56 AM
    Thank you so much , so this way an ip can submit once only is that correct ?
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    JotForm Founder

    Answered by aytekin on June 11, 2010 at 02:00 AM
    Exactly, "Strict Check" makes sure they can only submit a form once. 
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    Answered by pouzo on June 11, 2010 at 02:01 AM
    Thank you so much , Small question , were can i edit the page were it says sorry Only one entry is allowed