Upluggit

VariantFlow is a blazingly fast, zero-bloat A/B testing tool built natively for the WordPress Gutenberg editor. Instead of relying on heavy third-party SaaS platforms or bloated plugins that ruin your site speed, VariantFlow runs entirely within your WordPress dashboard.
Major Features: 
* Native Gutenberg Experience: Design your Variation A and Variation B directly inside the block editor. No external builders. 
* 100% Cache Compatible: The plugin uses a lightweight client-side script (< 1kb) to randomize variations, guaranteeing it works perfectly with WP Rocket, LiteSpeed Cache, W3 Total Cache, and any host-level page caching. 
* Zero Performance Hit: The tracking REST API endpoint is asynchronously called, ensuring your page load speed is never affected. 
* Clean Analytics: View a beautifully designed, minimal dashboard right in your WordPress admin to see Views, Clicks, and Click-Through Rates (CTR). 
* Smart Winner Declaration: Set a custom “Minimum Views” threshold (e.g., 50 or 100 views) before the plugin automatically highlights the statistically winning variation, preventing false positives. 
* Privacy Focused: Stores data securely in your own database. No tracking pixels, no third-party data sharing.
<h3>Common Use Cases</h3>
Not sure what to test? Here are a few ways VariantFlow can instantly increase your conversions: 
* Call-to-Action (CTA) Buttons: Test “Buy Now” vs. “Add to Cart” or “Get Started” vs. “Learn More”. See which text generates more clicks. 
* Pricing Pages: Test displaying a monthly pricing table vs. an annual pricing table to see which yields a higher click-through rate to your checkout. 
* Landing Page Headlines: Write two drastically different H1 headlines for your sales page to see which hooks more readers into clicking your links. 
* Lead Generation Forms: Test a short, simple form against a longer form with more details to find the sweet spot for email signups.

VariantFlow – Lightweight A/B Testing Block


I think this is a great idea and a really solid start. I like that you're keeping a simple, native Gutenberg feel.


Great Start for Native Gutenberg A/B Testing

A lightweight, native Gutenberg block A/B tester with zero bloat. 100% compatible with page caching.

Unbounce

With Unbounce’s landing page plugin for WordPress, marketers can create fully customized landing pages for 
their campaigns and publish them to their existing WordPress sites.
To publish landing pages on your WordPress website:
<ol>
<li>Build your landing page in Unbounce, the world’s most powerful landing page builder</li>
<li>Publish your page to WordPress using this very plugin</li>
<li>Manage all your WordPress landing pages through the plugin’s interface</li>
<li>Edit and update all your landing pages from Unbounce’s page builder. They’ll automatically get updated on your WordPress site</li>
</ol>
Unbounce allows you to customize your landing pages to match your brand perfectly. The WYSIWYG builder allows 
for quick and easy page editing. With the Unbounce WordPress Landing Page Plugin, you can launch your landing 
page on your own domain without ever talking to I.T. Try it for a month for free!
More than 10,000 digital marketers use Unbounce. Some of the features they love the most include:
<ul>
<li>Publish pages to your WordPress domain</li>
<li>A team of Customer Success coaches that are easy to reach when you need help</li>
<li>80+ free templates (plus more on ThemeForest)</li>
<li>Complete customizability of the desktop and mobile layouts</li>
<li>Built in A/B testing features</li>
<li>Integrations with the tools marketers use – MailChimp, SalesForce, Hubspot & more</li>
<li>Easy Google Analytics tagging & event tracking</li>
<li>Plus much more</li>
</ul>

Unbounce Landing Pages

Unbounce is the most powerful standalone landing page builder available.

VariantFlow – Lightweight A/B Testing Block vs Unbounce Landing Pages