Modular dual-layer anti-spam protection for WordPress forms and comments with custom TLD and email filtering.
Alternatives to Vaccine
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.
Invisible spam protection for every form, login and checkout. No puzzles, no checkboxes, no lost visitors — a CAPTCHA your users never see.
HubGuard Anti-Spamv1.0.1
Smart, AI-powered spam protection. Automatically detects your active forms and protects them from bots and malicious submissions.
Intelligent spam protection for WordPress forms, comments, and reviews. No CAPTCHA needed. Works with WPForms, Contact Form 7, WooCommerce, and more.
SpamJudgev1.1.0
Using AI large language models to automatically detect and filter spam comments, supporting APIs compatible with the OpenAI format.
Anti-spam protection for forms, signups, and comments using advanced honeypot techniques. No CAPTCHAs, no user friction.
Stop Search Spamv1.0.1
The plugin blocks internal site search spam (what lowers your site's ranking in the Google).
Real-time dynamic keyup validation, custom field rules, layer-3 bot security defense, and direct API hit protection for Elementor Forms.
Block spam comments, defend against login attacks, strengthen site security. Anti-spam, brute-force protection & two-factor authentication built in.
DigiNex Spam Guardv1.1.0
Invisible, CAPTCHA-free spam protection for Elementor, Contact Form 7, WPForms, Gravity Forms, Fluent Forms, Forminator, comments and sign-ups.