Honeypot Field
The simplest spam protection. Add a hidden field that bots will fill out:reCAPTCHA
reCAPTCHA v2 (Checkbox)
- Get keys at google.com/recaptcha
- Enable reCAPTCHA in your form settings
- Add the widget to your form:
reCAPTCHA v3 (Invisible)
For invisible protection:hCaptcha
Privacy-focused alternative to reCAPTCHA:Cloudflare Turnstile
Cloudflare’s privacy-preserving CAPTCHA alternative:Blocklists
Block specific emails, domains, IPs, or words in your form settings:Work Email Validation
Require business email addresses by enabling “Require Work Email” in settings. This blocks common free email providers:- gmail.com
- yahoo.com
- hotmail.com
- outlook.com
- And 100+ more
ML Spam Filtering
Enable ML-based spam detection for advanced filtering. This analyzes:- Content patterns (crypto spam, phishing, etc.)
- Email address patterns
- Submission metadata
- Link density
Rate Limiting
Prevent abuse with rate limiting:
When rate limited, submissions return a
429 Too Many Requests error.