Testing Size Guide Placement: Link, Tab, or Inline Table

Three placements, one honest metric. How to test size guide placement against fit returns instead of clicks, and what usually wins by product type.

Testing Warranty Length on the Product Page: What the Offer Communicates

Warranty length is a trust signal priced in support hours, not just conversion. Test design by product risk, and the support metrics that decide it.

Testing the Buy Button Label: Small Words, Measurable Stakes

Add to Cart, Buy Now, and Add to Bag do different jobs and set different expectations.

Testing Product Video Placement: Above the Fold or Earned Later

A product video can carry a demonstration no photo can, and it can also push the buy button down and slow the page.

Testing a Quantity Break Discount Table on Product Pages

Buy more, save more tables promise bigger baskets, but they also add clutter and margin risk.

Testing a Comparison Table on the Product Page

Shoppers compare your models in open tabs and lose track.

Testing a FAQ Section on Product Pages: Does It Move Conversion?

A FAQ built from support tickets, tested against your current page. Placement, question selection, and guardrail metrics.

Testing Low Stock Messages: Honest Scarcity Without the Panic

Real scarcity informs. Fake scarcity manipulates and gets found out. A test design with an honesty threshold built in.

Testing a Sticky Add to Cart Button on Product Pages

Sticky buttons are easy to add and easy to test badly. A clean test design with guardrails and device splits.

Testing Product Image Gallery Layouts: Thumbnails vs Stacked Images

Thumbnails ask for clicks, stacked images ask for scrolling. Testing which inspection style your shoppers actually use.

Testing a Subscription Offer on the Product Page: Design the Experiment

A subscription option is an offer redesign, not a checkbox. How to test it cleanly.

Testing Delivery Date Promises on the Product Page

A specific arrival date is a claim and a conversion lever. Testing it without lying.

Testing Product Page Headlines Without Guessing

Headline tests that mean something: one change, one metric, enough traffic, and a decision rule.

Cart Drawer vs Cart Page: How to Test Which Wins for Your Store

Drawer or cart page? The answer depends on your baskets. Here is a fair test design for both.

Testing Free Shipping Thresholds Without Guessing

Picking a test threshold, running it cleanly, and reading profit, not just conversion.

Testing Social Proof on Product Pages Honestly

Which social proof element actually lifts your product page, tested honestly.

Testing your returns page like you test your checkout

The returns page is read right before purchase and tested almost never. Auditing it as an experiment, with real metrics.

A simple experiment log that keeps storefront tests from repeating themselves

Stores rerun tests and re-argue results nobody recorded. A five field log that makes past results usable a year on.

Testing a free shipping threshold without guessing

A free shipping threshold can lift order value or burn margin. Pick it from your data and run the test cleanly.

Where social proof actually helps on a product page: a testing guide

Reviews and badges help in specific places and clutter in others. What to test first and how placement changes the effect.

Testing your homepage hero: product shot, lifestyle scene, or offer first

Everyone has a hero opinion; few stores have hero data. Structuring the three way test and reading it without self deception.

Testing a money back guarantee: framing, placement, and the return math

Guarantees convert the hesitant and invite the careless. Framing the test, placing it fairly, and judging by profit, not applause.

Testing a Shopify announcement bar offer without fooling yourself

Easy to change, hard to evaluate. Testing bar offers with a hypothesis, a metric, and enough patience.

Shopify product page tests: what to change one at a time

Product pages are the best testing surface and the most misused. Prioritized variables and clean method.

Testing Shopify product description formats: bullets, paragraphs, and proof

Bullets or paragraphs? Structuring a fair description format test, and what most stores learn.

Where reviews belong on the product page: a placement test

Stars at the top, full reviews at the bottom, or both? Testing placement without hiding social proof.

Testing product description format: bullets versus paragraphs

Bullets or paragraphs? How to test format on one product and read the result honestly.

Where should reviews live on the product page? A placement test

Stars up top are standard. Where the review block sits changes what shoppers absorb. Test it.

Testing Shopify product page galleries: image order experiments that actually matter

Test image order with clean rules, one change at a time, and honest reading.

A simple test for Shopify bundle offers on product pages

Where to place the offer, what to measure, and when to call it honestly.

Testing a free shipping threshold on Shopify: finding the number that lifts basket size

Set the level from your order data, run it cleanly, and read profit, not just orders.

Testing a sticky add to cart bar on Shopify: helpful shortcut or expensive distraction?

How to test a sticky bar honestly, on mobile first, with profit aware measures.

Should you test your Shopify product page headline?

The headline is the first thing a product page visitor reads and the easiest element to test well. How to run a headline test that produces a decision, not a debate.

Should you test a bundle offer on your Shopify product page?

Bundles raise average order value when they solve a real buying problem. How to pick a bundle worth testing, set a fair test, and read the results honestly.

Should you A/B test your Shopify free shipping threshold?

Free shipping thresholds are a classic A/B test, but most stores test them wrong. What to test, how long to run it, and the margin math to do before you start.

Should you A/B test your Shopify product page price display?

How price is framed changes how it feels. The three price display tests worth running first, how to measure them honestly, and the traps that make price tests lie.

Should you A/B test your Shopify announcement bar?

Announcement bars are small, visible, and easy to test, which makes them a tempting first experiment. When the test is worth running and what to measure.

Should you A/B test your Shopify collection page layout?

Collection pages are where browsing turns into buying, yet most stores never test theirs. The highest-leverage layout tests, how to structure the experiment, and the mistakes that waste traffic.

Should you test one thing at a time on Shopify?

Testing one variable at a time is the textbook rule, but slow stores cannot afford it. When single-variable tests are worth the wait, when multivariate or sequential testing is the pragmatic choice, and how to avoid fooling yourself either way.

The Storefront Lab HQ blog

How long should you run a Shopify A/B test before calling it?

Calling a test too early is the most common way to ship a losing variant. How long Shopify tests actually need, what sample size matters, and the peeking problem that quietly ruins results.

Storefront Lab HQ
Experiments and CRO for Shopify storefronts

The Storefront Lab HQ blog

Experiment notes and conversion guides for Shopify storefronts. Newest first.