What advantage does a captcha have?

Discussion in 'HTML & Website Design' started by carlg, Oct 4, 2008.

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  1. #1
    What advantage does a captcha have over me just putting a question on my web based forms?

    For example, I could just make the user enter the answer to a random math question (Like 10+12)


    Thanks
     
    carlg, Oct 4, 2008 IP
  2. SeanBlue

    SeanBlue Peon

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    #2
    The idea of captcha is to stop bots (scripts or programs) from accessing your pages or using your tools or whatever. If you just have the text 'What is 2+17? <input type="text" name="answer">' on your page then it's extremely easy to write a script that will just put the answer in the box and submit the form.

    Captcha on the other hand is more difficult to get past because it's usually image based and unless the bot is using pretty good digital image recognition software it doesn't stand much chance.
     
    SeanBlue, Oct 4, 2008 IP
  3. aj.eylia

    aj.eylia Peon

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    #3
    one of the main advantage is to reduce the spam.
     
    aj.eylia, Oct 4, 2008 IP
  4. gameOn

    gameOn Member

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    #4
    well thats a form of captcha too .. math captcha :D
     
    gameOn, Oct 4, 2008 IP