ASP.NET AJAX Control Toolkit Demos v20.1.0.0

NoBot Sample
Ajax Control Toolkit
NoBot Demonstration

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NoBot Description
NoBot is a control that prevents CAPTCHA-like bot/spam without user interactions. This approach is easier to bypass than the implementation that requires actual human intervention, but NoBot has the benefit of being completely invisible. NoBot is probably most relevant for low-traffic sites where blog/comment spam is a problem and 100% effectiveness is not required.
NoBot Properties
  • CutoffMaximumInstances - Optional maximum number of postbacks to allow by a single IP address within the cutoff window
  • CutoffWindowSeconds - Optional number of seconds specifying the length of the cutoff window that tracks previous postbacks from each IP address
  • ResponseMinimumDelaySeconds - Optional minimum number of seconds before which a response (postback) is considered valid

  • EmptyUserAddressCache() - Clears the user address cache
  • GetCopyOfUserAddressCache() - Returns a copy of the user address cache
  • IsValid(state) - Returns whether or not the user is valid
  • IsValid() - Returns whether or not the user is valid

  • GenerateChallengeAndResponse - An optional EventHandler providing a custom implementation of the challenge/response code
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