LeadShieldv1.0.0
Blocks fake, bot and AI-generated form submissions in real time — before they reach your inbox or CRM. No CAPTCHA. Free plan available.
Alternatives to WhoKnew Shield — Email, Phone & Address Security
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
Relevant replacements
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Reliable WordPress email delivery with multiple providers, two connections, Return Path, Reply-To and visual AND/OR routing.
Real-time dynamic keyup validation, custom field rules, layer-3 bot security defense, and direct API hit protection for Elementor Forms.
Anti-spam and scam protection for private messages in Better Messages: rate limits, contact filters, bot detection and safety warnings.
JRT CommentShieldv1.0.0
Smart and AI-powered anti-spam protection for WordPress comments. Blocks bots and spam automatically, with optional ChatGPT-based detection.
Proxy & VPN Blockerv3.6.0
Block VPNs, proxies, Tor, and spam on WordPress. Strengthen security and stop fake users with smart IP blocking via proxycheck.io.
Checkout Origin Guardv1.8.0
One-page WooCommerce checkout hardening; bot blocking, rate/sequence checks, business/email heuristics, and optional AVS-based risk signals.
A CAPTCHA alternative with no puzzle. Stops fake signups, spam registrations, form spam and card-testing bots, plus VPN, proxy and Tor traffic.
Protect your site from malicious bots and scanners using a smart honeypot trap.
Nullis Shieldv1.3.1
A Prevention-First security engine that eliminates bots before they hit your database. Lightweight, zero-bloat, and incredibly fast.