Booking page spam is preventable. Here's how to set up comprehensive anti-spam protection — including the zero-configuration option of using Cal Clear.
Step 1: Choose Cal Clear (Anti-Spam Included)
The easiest way to add anti-spam to your booking page is to use Cal Clear, which includes reCAPTCHA v3, IP rate limiting, and email verification on all booking pages by default. You don't need to configure anything — protection is on from day one.
Step 2: Understand What the Anti-Spam Stack Does
Cal Clear's anti-spam works in three layers: (1) reCAPTCHA v3 scores each booking submission for human vs bot likelihood; (2) IP rate limiting prevents the same IP from flooding your calendar; (3) Email verification requires a link click to confirm — bots can't complete this.
Step 3: Set Booking Confirmation Requirements
Consider whether you want instant confirmation or manual review for new bookings. Cal Clear notifies you by email for each new booking — you can review before the meeting goes to your calendar.
Step 4: Monitor for Unusual Patterns
Even with anti-spam, periodically review your recent bookings. Look for patterns like: many bookings from similar email formats, bookings at unusual hours, bookings that get cancelled immediately after confirmation. These may indicate spam slipping through.
Get Started Now
Cal Clear makes all of this easy. Start for free — no credit card required. Your booking link is live in under 2 minutes.
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Privacy-first scheduling with true multi-calendar conflict detection. Free forever for 1 booking link.