What Is Nelio A/B Testing?

Nelio A/B Testing is a WordPress optimization plugin that helps you improve your website through A/B testing, heatmaps, and session recordings—all without leaving your WordPress dashboard.

Whether you’re optimizing landing pages, WooCommerce stores, blogs, or business websites, Nelio A/B Testing helps you discover what works best by testing real changes with real visitors. It also provides optimization recommendations and guided workflows to help you continuously improve your site over time.

Core Capabilities

  • Run Tests: Create tests for pages, posts, products, themes, CSS, menus, widgets, synced patterns, and other WordPress content. Nelio automatically serves different variations to visitors and measures which version performs best.
  • Measure Conversions: Define one or more conversion goals for each test, including page views, clicks, form submissions, custom events, and other visitor actions.
  • Understand Visitor Behavior: Complement your tests with heatmaps, clickmaps, scrollmaps, and session recordings to better understand how visitors interact with your pages.
  • Optimize Continuously: Receive optimization recommendations, track your site’s Optimization Score, and discover new testing opportunities directly from the Overview page so you always know what to improve next.
  • Analyze Results: Review detailed reports, compare variants, monitor statistical confidence, and identify winning versions without leaving WordPress.

Technical Details

  • Compatible with modern versions of WordPress.
  • Works with the Block Editor (Gutenberg), Elementor, and most WordPress themes and page builders.
  • Designed to work alongside page caching and CDN solutions.
  • Includes built-in debugging tools for validating tests before publishing them.
  • Privacy-friendly and designed to support GDPR, CCPA, and similar regulations.
  • Requires an active Nelio A/B Testing subscription to unlock all features.
  • A free plan is available for low-traffic websites and for evaluating the plugin.

Who Is It For?

Nelio A/B Testing is designed for:

  • Website owners looking to increase conversions.
  • Marketing teams running optimization campaigns.
  • WooCommerce stores improving product and checkout performance.
  • Agencies optimizing client websites.
  • Developers who want native WordPress A/B testing with extensibility through filters and hooks

Next Steps

Ready to get started? Continue with these guides:

→ Introduction to Key Concepts in Nelio A/B Testing – Learn the basic terminology and how tests work.

→ Install Nelio A/B Testing – Install the plugin and connect your site.

→ I Just Activated Nelio A/B Testing. What Should I Do Next? – Complete the onboarding process and launch your first test.