What is CAPTCHA?
CAPTCHA stands for "Completely Automated Public Turing test to tell Computers and Humans Apart." It's a test on websites that blocks bots while letting real people through. Modern versions run invisibly in the background.
How it works in online booking
Without CAPTCHA, bots can flood your calendar with fake bookings - blocking real clients from getting appointments. CAPTCHA runs a silent check before each form submission. Fake bookings drop to zero. Real clients don't even notice. In Calendesk, CAPTCHA is active by default on every booking form - no setup needed. Pages built with the website builder are protected from day one. Read more about preventing fake bookings and spam.
Benefits
- Stops automated spam cold - fake bookings disappear completely
- Invisible CAPTCHA (v3) adds zero friction for actual clients
- Active by default in Calendesk - no configuration required
Frequently Asked Questions
Does CAPTCHA slow down the booking process?
Not with reCAPTCHA v3. It scores behavior silently and only shows a visible challenge when something looks suspicious. Over 95% of real clients never see any extra step.
Do I need to enable CAPTCHA in Calendesk?
No. CAPTCHA is active by default on every Calendesk account. Your booking forms are protected from day one - zero configuration on your end.
