How to Choose the Best Fit Testing Method on GemX (Based on What You Test)

This article helps you understand the A/B testing methods available in GemX and choose the one that best fits your optimization goal.

Whether you’re testing a single product page or comparing multiple landing pages, GemX provides flexible options for Shopify merchants at different stages of CRO.

Overview of Experiment Types on Gemx

GemX currently offers two core testing methods, each suited for a different type of optimization: Template Testing and Multipage Testing. Multipage Testing also supports funnel-wide experiments.

Learn more: Template Testing vs. Multipage Testing: When to Use Each in GemX

Template Testing (Single-page Testing)

Template Testing lets you test two versions of the same GemPages template on the same URL. This method is ideal when your experiment focuses on layout, copy, or UI changes while keeping the URL unchanged.

Common use cases:

• Reordering sections on a Product Page

• Testing a new hero banner

• Trying different CTA placements

• Comparing long vs. short product descriptions

• Updating trust badges or social proof

Best for: quick, controlled UI changes on a single page.

Learn more: How to Create a Template Testing Experiment in GemX

Multipage Testing (Funnel Testing)

Multipage Testing allows you to test different URLs against each other. Each page can have its own layout, design, messaging, and template. You can use GemPages templates, Shopify theme pages, or pages built with other tools.

Common use cases:

• Comparing two landing pages for paid traffic

• Testing multiple angles or offers for the same product

• Long-form vs. short-form pages

• A/B testing two Product Pages with different templates

• Split-testing offer pages, bundles, or seasonal promotions

Best for: landing pages, offers, and store pages that don’t share the same template.

Learn more: How to Create a Multipage Testing Experiment in GemX

When merchants want to evaluate the entire buying journey, GemX supports funnel-level testing using Multipage Testing. This combines multiple URLs into one experiment and measures the end-to-end performance.

Common use cases:

• LP A → PDP A → Checkout

• LP B → PDP B → Checkout

• Comparing two completely different customer journeys

• Testing different pre-purchase sequences (e.g., quiz → PDP vs. direct LP → PDP)

Best for: improving AOV, reducing drop-offs, and validating funnel strategy.

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How the Testing Methods Compare

Each method has a clear purpose. Choosing the right one ensures faster insights and more reliable results.

Select the Right Method Based on What You Test

Here are the most common scenarios and the recommended type of test.

Optimize a Product Page (PDP)

Use: Template Testing

Because the URL stays the same and you only want to modify layout, copy, or section order.

Test landing pages for paid ads

Use: Multipage Testing

This allows you to compare two completely different landing pages and split incoming traffic 50/50.

Test long-form vs. short-form content

Use: Multipage Testing

Long-form and short-form layouts often use different templates, so multi-URL testing is required.

Test different offers or bundles

Use: Multipage Testing

Offer pages often live on separate URLs. Multipage keeps results clean and easy to compare.

Test multiple designs for a homepage or collection page

Use: Multipage Testing

Home and collection pages commonly use distinct layouts, so comparing URLs works best.

Test the entire funnel experience

Use: Full Funnel Testing (Multipage)

Best for understanding which customer journey performs better. Ideal when your goal is:

• Higher AOV

• Higher Add-to-Cart rate

• Lower drop-offs between pages

Practical Tips to Choose The Best Fit For Each Test 

Tip 1: Match your URL structure:

• Same URL → Template Testing

• Different URLs → Multipage Testing

Tip 2: Align with your CRO goal:

• UI improvements → Template

• Messaging/offer/design → Multipage

Tip 3: Start simple if you’re new to A/B testing

Tip 4: Don’t test too many variables at once

Tip 5: Run tests with enough traffic to detect a meaningful winner

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FAQs about GemX Experiment Types

Can I test a GemPages page against a non-GemPages page?

Yes. Any public Shopify URL can be added to a Multipage experiment. This allows you to test a GemPages landing page against a theme page or a page created with another app within the same store.

Which testing method is the easiest to set up?

Template Testing is the fastest option to set up. You simply duplicate a GemPages template, adjust the design, and run the test on a single URL, making it ideal for first-time experiments or small UI changes.

Which method should I use for paid ads?

Multipage Testing is recommended for paid ads. Each landing page has its own URL, allowing you to send ad traffic to different pages and measure which version drives more add-to-cart actions, orders, or revenue.

How do I test my entire funnel instead of one page?

You can test an entire funnel by creating a Multipage experiment that compares two or more user journeys, such as LP → PDP → Checkout versus Advertorial → PDP → Checkout. GemX then reports which journey performs better based on your selected conversion goal.

Can I change the testing type after an experiment is created?

No. The testing type, whether Template Testing or Multipage Testing, is fixed once an experiment is created. To use a different testing method, you need to create a new experiment while keeping previous results for reference.

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