Double Opt-In
Double Opt-In ensures that only genuine, interested users make it to your database. When someone submits a form, a confirmation email is sent automatically. Their submission is only considered valid after they verify their email address. This reduces fake entries, builds a consent-based contact list, and boosts email deliverability—making it essential for security-compliant data collection.
OTP verification
Add a layer of real-time validation with One-Time Password (OTP) verification. Users receive a unique code via email, SMS, or WhatsApp, which they must enter to access the form. This confirms authenticity and blocks spam bots or invalid submissions. It’s ideal for high-value forms like job applications, event registrations, and gated downloads.
CAPTCHA protection
CAPTCHA keeps bots at bay while letting real users through with ease. Whether you use a simple checkbox or an invisible option, CAPTCHA ensures only human entries are accepted. It’s a fast, lightweight solution to eliminate automated spam and maintain clean, actionable form data.
At a glance
Features
Purpose
Best for
Verification method
Double Opt-In
Confirms user validity via email
Newsletters, contact lists
Email confirmation link
OTP verification
Validates contact info in real time
Registrations, appointments
Data authenticity
CAPTCHA protection
Prevents automated bot entries
Public forms, large data sets
Spam prevention
Stop spam before it starts
No one wants to waste time filtering spam or chasing invalid leads. With Zoho Forms’ built-in spam control tools, you don’t need third-party plug-ins or manual moderation. Just configure once and let the system do the work—so you can focus on real users and real results.