(Captcha|ReCaptcha) - Completely Automated Public Turing test to tell Computers and Humans Apart

> User Interface (GUI)

1 - About

captcha means Completely Automated Public Turing test to tell Computers and Humans Apart.

A captcha is a test to prove that the person submitting a form is a human and not a bot.

They are explicitly designed to prevent automation.

Advertising

3 - Type

3.1 - Captcha

A captcha occurs when the contact is asked to resolve a challenge:

  • ie enter text given in a box in a distorted font
  • or to solve a simple math problem.

A captcha test is also difficult for human and is therefore a barrier on forms submission

recaptcha is easier.

3.2 - reCAPTCHA

Simpler than CAPTCHA

  • reCAPTCHA v2 just requires the contact to click a checkbox.

  • reCAPTCHA v3 returns a score based on the interactions with your website.
    • 1.0 is very likely a good interaction,
    • 0.0 is very likely a bot
Advertising

4 - Documentation / Reference