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captcha was first developed by Google for preventing webmaster auto-submitting their site to google search engine using bot.

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Q: Who developed captcha?
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Related questions

Is it called Capcha or CAPTCHA?

The correct spelling is Captcha. You can get more information about Captcha's at the Wikipedia. Once on the website, type "Captcha" into the search field at the top of the page and press enter to bring up the information.


How do you make a captcha?

You may buy captcha from all kind of services or create one by yourself using some open source captcha. Check the link below for a list of open source captcha services.


Why do you have to do the CAPTCHA thing as a WikiGuide?

WikiGuides do not have the captcha because of the nature of their work in the community.


Where are CAPTCHAs being developed?

CAPTCHA's are developed in an attempt to eliminate spam from automated systems. Some sites on the internet require the use of CAPCHA's which is a combination of letters and numbers a user needs to input to allow viewing of the site.


Is the weird word called that you have to retype to security clearance?

I believe the word you're looking for it CAPTCHA or ReCAPTCHA developed by Luis Von Ahn at Carnegie Mellon University.


Do you have to enter a CAPTCHA on WikiAnswers when you enter a question?

No, you do not have to enter a CAPTCHA when you ask a question.And when you answer a question?To answer a question, however, you have to enter the CAPTCHA if you are not signed in to the site.


How does captcha wrk?

it doenst


How do you do captcha entry?

You pay for a service that pays for people (cheap human resource) to pass the captcha tests. It is that simple.


Can't create Yahoo Mail account CAPTCHA won't load?

i have tried multy captcha but it wont work


Why wont steam captcha work?

The CAPTCHA may not work because you may have typed it in wrong, or it may be a "faulty" CAPTCHA. If you're having trouble then try using a different browser, or reload the page.


Do you have to enter a CAPTCHA on WikiAnswers when you answer a question?

Not If You Are Signed InSigned-in users do not have to enter a CAPTCHA when answering questions, but anonymous IP addresses do.


How much speed of Internet is required for CAPTCHA entry?

I am doing this captcha entry, and it requires minimum of 512kbps speed of Internet..........