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Ten very creative verification code designs

Source: Internet
Author: User
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CAPTCHA is short for "Completely automatic Public Turing test to tell Computers and Humans Apart" (a Completely Automated Turing test that distinguishes Computers from Humans, it is a fully-automated public program that distinguishes users from computers and people. It can prevent malicious password cracking, ticket swiping, Forum bumping, and so on. Today, we will share with you the implementation of ten creative verification codes.

1. QapTcha

2. buttonCaptcha

3. Fancy Draggable Captcha

4. Ajax Fancy Captcha

5. Sexy Captcha

6. simpleCaptcha

7. slideLock

8. Captcha PHP

9. NuCaptcha

10. identiPIC

(Source: Dream sky Source: Top 10 Really User Friendly Captchas)

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Related Keywords:
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