How reCAPTCHA v3 protects scheduling pages from spam bookings without annoying legitimate users. Cal Clear uses invisible reCAPTCHA on all booking pages.
reCAPTCHA v3 vs v2: Why v3 Is Better for Booking
reCAPTCHA v2 shows users a checkbox or image puzzle challenge — friction for legitimate users. reCAPTCHA v3 is completely invisible: it runs in the background scoring each form submission on a 0.0-1.0 scale (1.0 = definitely human). Submissions below a threshold are blocked. Real users never see a challenge; bots are blocked automatically.
How Cal Clear Uses reCAPTCHA v3
Cal Clear's booking form includes reCAPTCHA v3 scoring on every submission. When someone submits a booking, the score is evaluated. High-confidence human submissions proceed normally. Low-confidence submissions (likely bots) are blocked before the booking is created. The threshold is calibrated to minimize false positives for legitimate users.
Why This Matters for Professionals
Calendly has publicly acknowledged limited spam protection. The result: Calendly users report floods of fake booking requests from bots promoting services, testing systems, or simply wasting time. Cal Clear's reCAPTCHA v3 implementation addresses this at the most fundamental level — the form submission itself.
Combined with Email Verification
Even if a sophisticated bot passes reCAPTCHA v3, Cal Clear's email verification requires clicking a link in a real email inbox. Bots can't complete this step. The two-layer approach provides robust protection without impacting legitimate user experience.
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All these features are included on Cal Clear's free plan. Start at calclear.app — no credit card required, live in 2 minutes.
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