How does CAPTCHA work?
User must solve a task, such as transcribing garbled text, recognizing images, or checking boxes to confirm they are not a bot.
Why is CAPTCHA important?
Provides protection against spam, bot registrations, brute force attacks and other website security threats.
CAPTCHA types
The most popular are reCAPTCHA from Google, graphic tests (image selection) and interactive puzzles. Methods that are invisible to the user, e.g. analyzing mouse movement, are increasingly used.
Impact of CAPTCHA on UX and SEO
While it increases security, overly complex tests can frustrate users and reduce conversions. Digital agencies implement solutions that minimize the impact on user experience.
A well-designed CAPTCHA effectively secures the website without reducing the convenience of its use.
