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Page builder

A/B testing for Astra

Run cookieless, flicker-free split tests on your Astra pages - free, with no traffic limits and no third-party tracking. Astra works with the block editor and most page builders, so you can test however you build - the class field is always there.

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Why it fits Astra

No lock-in

ImproveAB matches variants by a CSS class, so it works inside Astra without replacing your editor or markup.

Fast & flicker-free

The original never flashes - the tested element stays hidden until the assigned variant is applied - and assignment runs in the browser, so Astra pages stay fast and cache-friendly.

Private by default

No cookies and no third-party calls in the page your visitors load. Their data stays in your own WordPress database.

Setup

Adding a test class in Astra

Each variant gets a class from the plugin. Add it to the matching element in Astra - that's the only builder-specific step.

  1. Create the test

    In the ImproveAB dashboard, create a test. It generates a class for each variant, for example:

    .improveab-hero-cta-v1

  2. Add the class in Astra

    Select the block or element → Advanced → Additional CSS class(es) (or your builder's CSS class field). Use the class that matches the version you are editing: the one ending in -default on the original, the one ending in -v1 on the new version.

  3. Pick a goal & launch

    Choose a conversion goal - a page visit, an element click, a link click, a form submission or a WooCommerce add-to-cart - then start the test and watch results come in.

The New test screen: step cards for Basics, Variants, Conversion goal and Advanced, the test name with its generated CSS class, the element or full-page choice, and a steps rail where Save and start waits for a goal
Step 1 in the plugin: naming the test generates the CSS classes you paste into Astra.

Verified against Astra with the WordPress block editor in September 2026. Builders change their panels between major versions, so this page names the version it was checked against. Source: WordPress documentation: the WordPress editor.

Read the full how-it-works guide

What you can test on an Astra site

Anything you can give a CSS class: headlines, calls to action, hero images, pricing tables, section order, or whole landing pages via a URL/redirect test. Free covers A/B and A/B/n tests with up to six variants, as many running at once as you like, every goal including WooCommerce revenue and page targeting; Pro adds statistical significance, automation, audience targeting, traffic weights, custom CSS and the AI tools.

Using a different tool as well? ImproveAB works the same way in every major builder - one plugin across every site you build.

How it works

One Astra page, two variants

No second page to maintain, no redirect, and the same cached HTML for every visitor. Here is the whole mechanism.

  1. Both versions ship in one page

    You build both versions in Astra and give each one the class the plugin generated: the original gets the class ending in -default, the new version the one ending in -v1. Both sit in the same page.

    improveab-hero-cta-defaultimproveab-hero-cta-v1

  2. The browser picks a side

    A visitor arrives on the cached page. Both versions start hidden, then the plugin's script assigns the visitor a variant in the browser and reveals only that one, so the original never flashes and no cookie is set.

    50% see A50% see B

  3. The count lands in your database

    Impressions and conversions are written to your own WordPress tables. Nothing leaves the site, and the CDN keeps serving the same cached HTML to everyone.

    your site → your database

FAQ

Astra questions

The things people ask before their first Astra test.

Where is the CSS class field in Astra?

Select the block or element -> Advanced -> Additional CSS class(es) (or your builder's CSS class field). Use the class that matches the version you are editing: the one ending in -default on the original, the one ending in -v1 on the new version.

Can I test a whole Astra page or template?

Yes. Build the second version as its own page and run a URL split test: the redirect happens in the page head before anything paints, each visitor stays on the version they first saw, and the variant's canonical points at the original by default.

Do I have to use the class field, or does point-and-click work on Astra pages?

Both work. Point-and-click runs on the front end of any page while you are logged in with the admin bar showing, so you can click a headline, button or paragraph that Astra rendered and type the alternative without opening the editor. The class field is there when you would rather build the variant in Astra.

Start testing your Astra pages

The free plugin is in final testing. Join the waitlist and we will email you the day it lands.

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