
The quickest and GDPR-compliant Anti-Spam Protection plugin to prevent bot spam comments in the Default Commenting System of WordPress.
To prevent spamming of comments, the default action path (wp-comments-post.php) is blocked for users and clickable over a unique hash key when a visitor scrolls to leave a comment. Doing so prevents comment spamming that can be done by bots.
Install “Ninja Spam Protection” Plugin Manually
Install Ninja Spam Protection Plugin from WordPress Dashboard
Starting from $0 per month.
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Common Ninja has a large selection of powerful Wordpress plugins that are easy to use, fully customizable, mobile-friendly and rich with features — so be sure to check them out!
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Common Ninja Apps
Browse our extensive collection of compatible plugins, and easily embed them on any website, blog, online store, e-commerce platform, or site builder.
Collect candidate information with a job application form that organizes submissions, streamlines hiring, and helps you manage applicants efficiently.
Show key stats with an animated number counter that draws attention, adds social proof, and helps increase trust and conversions.
Create interactive diagrams with a diagrams widget that lets you build and customize flow charts, improve clarity, and help visitors understand complex ideas easily.
Show TikTok videos with a TikTok slider that displays clips in an engaging, customizable slideshow to boost visibility and keep visitors watching.
Add a Pomodoro timer to your site so users can structure focus and break cycles, improving time management and productivity.

Show Blogger posts automatically with a Blogger feed that keeps your content fresh, improves navigation, and helps visitors discover more of your work.
Add a flexible size chart with visual guides and category tabs to help users choose accurate measurements while shopping.
Show your team with interactive team member flip cards that build trust, support transparency, and help visitors connect with the people behind your brand.

Collect event responses with an RSVP form that lets guests register easily, saves submissions, sends notifications, and helps you organize attendance efficiently.
Use flip cards to present information interactively, improve visual design, and guide visitors toward clearer decisions that support conversions.
Use a contact form so visitors can send messages, submit inquiries, and help you collect leads and improve user experience.
Show Bluesky posts with a Bluesky feed that updates in real time, improves content discovery, and keeps visitors engaged with fresh activity.
More plugins
The Common Ninja Search Engine platform helps website builders find the best site widgets, apps, plugins, tools, add-ons, and extensions! Compatible with all major website building platforms - big or small - and updated regularly, our Search Engine tool provides you with the business tools your site needs!
