What is CAPTCHA or reCAPTCHA? How Does It Works? I am not a Robot

A “CAPTCHA” is a Turing test to tell human and bots apart. In other words, CAPTCHA determines whether the user is real or a spam robot. It is easy for humans to solve, but hard for “bots” and other malicious software to figure out.

reCAPTCHA is a free service from Google that helps protect websites from spam and abuse. By adding reCAPTCHA to a site, you can block automated software while helping your welcome users to enter with ease.

How Does a CAPTCHA Works?

CAPTCHAs were invented to block spammy software from posting comments on pages or purchasing excess items at once. The most common form of CAPTCHA is an image with several distorted letters. It is also common to choose from a variety of images where you need to select a common theme.

The internet and computers are made up of a unique coding language. Computers find it difficult to understand languages because of the strange and intricate rules human languages take on, along with slang that humans use.

How CAPTCHA prevents Scammers

CAPTCHA has a variety of applications for keeping websites and users secure. These include but are not limited to:

• Protecting email addresses from scammers
• Protect website registrations
• Protects online polling
• Protects against email worms/junk mail
• Prevents dictionary attacks
• Prevents comment spamming on blogs