All Latest 645 A/B Tests

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Test #673 by Jakub LinowskiJakub Linowski Oct 13, 2026 Desktop Mobile Home & Landing X.X% Sales

Jakub Tested Pattern #62: Urgent Next Day Delivery

Pattern #62: Urgent Next Day Delivery - Variant A
Pattern #62: Urgent Next Day Delivery - Variant B

In this experiment, delivery copy was added under each product tile, letting shoppers know they could send an email gift message today. The idea was to reassure last-minute gift buyers that the recipient would hear about their gift right away, even before the physical delivery arrives. Impact on checkout visits and sales was measured.

Total Sample: 34,566 • Statistical Power at 5% MDE: 57.1%

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Test #672 by Oshri MaidanikOshri Maidanik Sep 30, 2026 Desktop Mobile Checkout X.X% Sales

Oshri Tested Pattern #42: Countdown Timer

Pattern #42: Countdown Timer - Variant A
Pattern #42: Countdown Timer - Variant B

This experiment ran on an ecommerce store utilizing Shopify's checkout. The treatment compared the checkout experience with and without a limited-time countdown timer. Impact on placed orders was measured. The A/B test ran using PrettyDamnQuick software.

Total Sample: 27,125 • Statistical Power at 5% MDE: 99.9%

Test #668 by Oshri MaidanikOshri Maidanik Sep 13, 2026 Desktop Mobile Checkout X.X% Sales

Oshri Tested Pattern #42: Countdown Timer

Pattern #42: Countdown Timer - Variant A
Pattern #42: Countdown Timer - Variant B

This experiment ran on an ecommerce store utilizing Shopify's checkout. The treatment compared the checkout experience with and without a limited-time countdown timer. Impact on placed orders was measured. The A/B test ran using PrettyDamnQuick software.

Total Sample: 8,344 • Statistical Power at 5% MDE: 76.7%

Test #664 by Oshri MaidanikOshri Maidanik Aug 12, 2026 Desktop Mobile Checkout X.X% Sales

Oshri Tested Pattern #4: Testimonials

Pattern #4: Testimonials - Variant A
Pattern #4: Testimonials - Variant B

This experiment ran on an ecommerce store utilizing Shopify's checkout. The treatment showed a single testimonial and impact on placed orders was measured. The A/B test ran using PrettyDamnQuick software.

Total Sample: 37,103 • Statistical Power at 5% MDE: 99.9%

Test #663 by Jakub LinowskiJakub Linowski Jul 29, 2026 Desktop Mobile Checkout X.X% Sales

Jakub Tested Pattern #20: Canned Response

Pattern #20: Canned Response - Variant A
Pattern #20: Canned Response - Variant B

In this experiment, users were able to auto-generate gift messages during the checkout flow based on input fields above. For this reason, the message input area was also shifted further down beyond the initial fields.

Total Sample: 3,838 • Statistical Power at 5% MDE: 84.4%

Test #662 by Jakub LinowskiJakub Linowski Jul 16, 2026 Mobile Shopping Cart X.X% Sales

Jakub Tested Pattern #15: Bulleted Reassurances

Pattern #15: Bulleted Reassurances - Variant A
Pattern #15: Bulleted Reassurances - Variant B

In this checkout funnel experiment, instead of showing order details and reassurances in a labeled key-value format (e.g., "Club Length: 6 Months"), they were condensed into an unlabeled bullet list. Media logo badges were also removed. Impact on checkouts and sales was measured.

Total Sample: 2,375 • Statistical Power at 5% MDE: 27.8%

Test #658 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Jun 30, 2026 Desktop Listing X.X% Sales

Andrey Tested Pattern #92: Already Viewed Label On Online.metro-cc.ru

Pattern #92: Already Viewed Label - Variant A
Pattern #92: Already Viewed Label - Variant B

In this experiment, users who viewed a product and then visited a listing or search results page, saw "Recently Viewed" badges on top of the corresponding product tiles. Impact on adds to cart and sales was measured.

Total Sample: 980,372 • Statistical Power at 5% MDE: 80.5%

Test #636 on Backstage.com by Stanley ZuoStanley Zuo Feb 24, 2026 Desktop Mobile Pricing X.X% Progression

Stanley Tested Pattern #114: Less Or More Visible Prices On Backstage.com

Pattern #114: Less Or More Visible Prices - Variant A
Pattern #114: Less Or More Visible Prices - Variant B

In this experiment, a larger vs smaller font size for the yearly price was tested. Impact on annual subscription clicks was measured. (The experiment has been inverted to fit the pattern.)

Total Sample: 6,978 • Statistical Power at 5% MDE: 31.4%

Test #633 on Reverb.com by Nicholas EvansNicholas Evans Jan 31, 2026 Desktop Mobile Product X.X% Sales

Nicholas Tested Pattern #103: Money Back Guarantee On Reverb.com

Pattern #103: Money Back Guarantee - Variant A
Pattern #103: Money Back Guarantee - Variant B

In this experiment, different reassurance messages were shown at the bottom of the add-to-cart widget on a product page. The variation emphasized full refunds for faulty or misrepresented items.

Total Sample: 488,288 • Statistical Power at 5% MDE: 28.7%

Test #632 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Jan 30, 2026 Desktop Mobile Checkout X.X% Sales

Andrey Tested Pattern #65: Add More For Extra Incentive On Online.metro-cc.ru

Pattern #65: Add More For Extra Incentive - Variant A
Pattern #65: Add More For Extra Incentive - Variant B

In this experiment, two changes were made to the checkout page: (1) the minimum basket size requirement was made more visible using a floating element, and (2) an additional threshold was introduced to encourage customers to add more items by offering a free gift at a higher spend level. The impact on sales was measured.

Total Sample: 36,284 • Statistical Power at 5% MDE: 86.7%

Test #630 on Kay.com by Craig KistlerCraig Kistler Jan 27, 2026 Desktop Mobile Product X.X% Sales

Craig Tested Pattern #21: What It's Worth On Kay.com

Pattern #21: What It's Worth - Variant A
Pattern #21: What It's Worth - Variant B

In this experiment, a pricing table (an upsell of product protection plan coverages) was tested against a more explicit yes/no toggle for including the plan. Impact was measured on adds to cart, orders, and upsell rate, using an 80/20 traffic split.

Total Sample: 1,052,531 • Statistical Power at 5% MDE: 93.7%

Test #616 on Finn.com by Maksim Meged Maksim Meged Oct 29, 2025 Mobile Product X.X% Sales

Maksim Tested Pattern #136: Earliest Availability On Finn.com

Pattern #136: Earliest Availability - Variant A
Pattern #136: Earliest Availability - Variant B

A number of copy tweaks were made in this experiment which was flipped around to match the earliest availability pattern (one of the more visible changes). Under this assumption, one of the more visible copy changes is the switch from using a blue "Most popular" tag towards a green "Available from [DATE]". The "available from" is also visible in the other version, except further down and with lower contrast. Impact on adds to cart and orders was measured.

Total Sample: 157,930 • Statistical Power at 5% MDE: 51.1%

Test #609 by Melina HessMelina Hess Aug 31, 2025 Mobile Product X.X% Sales

Melina Tested Pattern #46: Pay Later

Pattern #46: Pay Later - Variant A
Pattern #46: Pay Later - Variant B

In this experiment, a Klarna buy now pay later badge was added to the PDP. It was added above the paypal buy now pay later badge in the benefit section below the ATC button. Impact on adds to cart and sales was measured.

Total Sample: 364,582 • Statistical Power at 5% MDE: 86.2%

Test #604 by Melina HessMelina Hess Jul 31, 2025 Mobile Product X.X% Sales

Melina Tested Pattern #46: Pay Later

Pattern #46: Pay Later - Variant A
Pattern #46: Pay Later - Variant B

In this experiment, a Paypal badge with "buy now pay later" copy (pay within 30 days) was added underneath the add-to-cart button on product pages. Impact on adds to cart and sales was measured.

Total Sample: 645,035 • Statistical Power at 5% MDE: 99.9%

Test #602 on Finn.com by Tim KarcherTim Karcher Jul 29, 2025 Desktop Mobile Signup X.X% Progression

Tim Tested Pattern #134: Optional or Confident Recommendation On Finn.com

Pattern #134: Optional or Confident Recommendation - Variant A
Pattern #134: Optional or Confident Recommendation - Variant B

In this experiment, the control contained a headline with a somewhat ambiguous choice, asking users to "Login or Register". Whereas the variation communicated a simpler action headline: "Let's go". Down funnel impact was measured (post-registration) on product page views and adds to cart. (This also was an irregular split ratio; not a 50/50 split)

Total Sample: 13,718 • Statistical Power at 5% MDE: 14.8%

Test #601 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Jul 22, 2025 Desktop Product X.X% Sales

Andrey Tested Pattern #45: Benefit Bar On Online.metro-cc.ru

Pattern #45: Benefit Bar - Variant A
Pattern #45: Benefit Bar - Variant B

In this experiment, 4 selling points were added at the top of product details pages. Clicking on them would launch a modal with more details.

Total Sample: 481,189 • Statistical Power at 5% MDE: 42.8%

Test #600 by Jakub LinowskiJakub Linowski Jul 18, 2025 Desktop Mobile Checkout X.X% Sales

Jakub Tested Pattern #63: Trust Seals

Pattern #63: Trust Seals - Variant A
Pattern #63: Trust Seals - Variant B

In this experiment, 4 accepted credit card icons were added to an add-to-cart and checkout flow. Impact on sales was measured.

Total Sample: 7,986 • Statistical Power at 5% MDE: 82.6%

Test #596 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Jun 24, 2025 Desktop Product X.X% Sales

Andrey Tested Pattern #7: Social Counts On Online.metro-cc.ru

Pattern #7: Social Counts - Variant A
Pattern #7: Social Counts - Variant B

In this experiment, products with 10 or more purchases within the recent week showed the number of customers that bought it as a social proof element. Impact on adds to cart and purchases was measured.

Total Sample: 64,535 • Statistical Power at 5% MDE: 8.8%

Test #590 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev May 15, 2025 Desktop Home & Landing X.X% Sales

Andrey Tested Pattern #45: Benefit Bar On Online.metro-cc.ru

Pattern #45: Benefit Bar - Variant A
Pattern #45: Benefit Bar - Variant B

In this experiment, 4 selling points were added at the top of the homepage. Clicking on them would launch a modal with more details.

Total Sample: 275,410 • Statistical Power at 5% MDE: 38.8%

Test #587 on Asics.com by Andrey ProkhorovAndrey Prokhorov Apr 26, 2025 Desktop Product X.X% Sales

Andrey Tested Pattern #140: Product Descriptions

Pattern #140: Product Descriptions - Variant A
Pattern #140: Product Descriptions - Variant B

In this experiment, product descriptions were moved up on the page and expanded by default. As a result, related and product recommendation were pushed further down on the page. Impact on ATC and sales was measured.

Total Sample: 164,018 • Statistical Power at 5% MDE: 79.9%