Tired of deleting spam comments every day? SpamJam is a lightweight, invisible anti-spam solution that blocks automated spam before it hits your database—without annoying your legitimate users with captchas or verification steps.

Why SpamJam?

Unlike traditional anti-spam plugins that rely on third-party services or frustrating captchas, SpamJam uses intelligent honeypot techniques and behavioral analysis to silently eliminate spam bots. Your real visitors won’t see any difference, but spam bots will be stopped cold.

Free Features

✅ Salted Honeypot Protection – Per-site randomized invisible fields that trap spam bots
✅ Timing Check – Rejects instant bot submissions with a configurable minimum fill time
✅ Weighted Spam Scoring – Signals combine into a score; gray-zone submissions held for moderation instead of hard-blocked
✅ Referrer Validation – Blocks direct form submissions
✅ Nonce Security – CSRF protection for all comment forms
✅ Smart Blocklist – Filters common spam keywords
✅ Zero Configuration – Works immediately after activation
✅ No Captchas – Never annoy your real users
✅ Lightweight – Minimal impact on site performance
✅ WooCommerce Compatible – Works with HPOS and product review forms
✅ No-JS Friendly – JS-disabled visitors are soft-scored, not hard-blocked

Pro Features (Premium)

🚀 Registration Spam Protection – Protect user registration forms with email verification
🚀 Premium Blocklist – Auto-updating list of 15,000+ spam terms
🚀 Custom Blocklist – Add your own keywords and patterns to block
🚀 Geographic Blocking – Block comments from specific countries
🚀 IP Blocking – Block specific IP addresses or ranges
🚀 Rate Limiting – Prevent spam floods with configurable limits
🚀 Email Whitelist – Always allow trusted email addresses
🚀 Spam Logging & Analytics – Track and analyze blocked spam attempts
🚀 Content Validation – Set minimum comment length and maximum links
🚀 Contact Form Protection – Protect Contact Form 7, WPForms, Gravity Forms
🚀 User Enumeration Blocking – Enhanced security against attacks
🚀 Priority Support – Get help when you need it

Upgrade to SpamJam Pro

Perfect For

Blogs with active comment sections
Membership sites
WooCommerce stores
Community websites
Any WordPress site tired of spam

How It Works

SpamJam uses multiple layers of protection:

Salted Honeypot Fields – Per-site randomized hidden fields that only bots fill out
Timing Check – HMAC-signed server timestamp detects instant bot submissions
Weighted Scoring Engine – Signals combine into a score; hard signals block immediately, soft signals accumulate; gray-zone submissions are held for moderation
Referrer Checking – Verifies submissions come from your site
Hash Validation – Cryptographic HMAC verification of form integrity
Keyword Filtering – Blocks known spam patterns

All of this happens invisibly in the background. Your legitimate users never see a captcha or verification step.

Privacy First

SpamJam doesn’t send your data to third-party services. Everything happens on your server, keeping your users’ information private and your site GDPR-compliant.