All Latest 645 A/B Tests

Test #650 by Jakub LinowskiJakub Linowski May 24, 2026 Desktop Product X.X% Progression

Jakub Tested Pattern #37: List Or Grid View

Pattern #37: List Or Grid View - Variant A
Pattern #37: List Or Grid View - Variant B

In this experiment, a buy box layout without product choices, was laid out differently. In the control, it product options were shown as a vertical list, whereas in the variation they were turned into a 2x2 grid. Impact on adds to cart and sales were measured.   

Total Sample: 7,800 • Statistical Power at 5% MDE: 10.5%

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Test #649 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev May 23, 2026 Desktop Mobile Global X.X% Progression

Andrey Tested Pattern #141: Square or Rounded Buttons On Online.metro-cc.ru

Pattern #141: Square or Rounded Buttons - Variant A
Pattern #141: Square or Rounded Buttons - Variant B

In this experiment, square buttons were changed to rounded ones throughout the full site. Impact on adds-to-cart was measured.

Total Sample: 9,171,836 • Statistical Power at 5% MDE: 99.9%

Test #648 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Apr 28, 2026 Desktop Mobile Global X.X% Progression

Andrey Tested Pattern #82: Onboarding Callouts On Online.metro-cc.ru

Pattern #82: Onboarding Callouts - Variant A
Pattern #82: Onboarding Callouts - Variant B

In this experiment, a red dot was added to the login link, along with a hover state that clarified the benefits of doing so. Impact on adds to cart and sales was measured.

Total Sample: 1,752,311 • Statistical Power at 5% MDE: 79.6%

Test #647 by Jakub LinowskiJakub Linowski Apr 27, 2026 Mobile Product X.X% Progression

Jakub Tested Pattern #79: Product Highlights

Pattern #79: Product Highlights - Variant A
Pattern #79: Product Highlights - Variant B

In this experiment, a set of 5 alternative product recommendations were moved from the very bottom of the page (control) to the top (variation). These "You May Also Like " recommendations were moved just above the existing product descriptions. Impact on adds to cart and sales was measured.

Total Sample: 29,169 • Statistical Power at 5% MDE: 11.2%

Test #646 by Jakub LinowskiJakub Linowski Apr 25, 2026 Desktop Product X.X% Progression

Jakub Tested Pattern #79: Product Highlights

Pattern #79: Product Highlights - Variant A
Pattern #79: Product Highlights - Variant B

In this experiment, a set of 5 alternative product recommendations were moved from the very bottom of the page (control) to the top (variation). These "You May Also Like " recommendations were moved just above the existing product descriptions. Impact on adds to cart and sales was measured.

Total Sample: 22,445 • Statistical Power at 5% MDE: 13.8%

Test #644 on Obsbygg.no by Joachim FurusethJoachim Furuseth Apr 16, 2026 Desktop Listing X.X% Progression

Joachim Tested Pattern #34: Open In A New Tab On Obsbygg.no

Pattern #34: Open In A New Tab - Variant A
Pattern #34: Open In A New Tab - Variant B

This experiment ran on desktop only, on all our regular product listing and search result page. In the control, clicking on products would open them up in the same page, whereas in the variation, the links opened in a new tab. Impact on adds-to-cart were measured.

Total Sample: 282,651 • Statistical Power at 5% MDE: 99%

Test #645 on Obs.no by Joachim FurusethJoachim Furuseth Apr 16, 2026 Desktop Listing X.X% Progression

Joachim Tested Pattern #34: Open In A New Tab On Obs.no

Pattern #34: Open In A New Tab - Variant A
Pattern #34: Open In A New Tab - Variant B

This experiment ran on desktop only, on all our regular product listing and search result page. In the control, clicking on products would open them up in the same page, whereas in the variation, the links opened in a new tab. Impact on adds-to-cart were measured.

Total Sample: 105,004 • Statistical Power at 5% MDE: 62.6%

Test #643 on Backstage.com by Stanley ZuoStanley Zuo Mar 28, 2026 Desktop Mobile Home & Landing X.X% Progression

Stanley Tested Pattern #135: Product Categories On Backstage.com

Pattern #135: Product Categories - Variant A
Pattern #135: Product Categories - Variant B

In this experiment, more popular search categories (pills) were shown on the homepage based on analyzed search volume. Impact on searches and email subscriptions were measured.

Total Sample: 112,266 • Statistical Power at 5% MDE: 80%

Test #641 on Kay.com by Craig KistlerCraig Kistler Mar 26, 2026 Desktop Mobile Global X.X% Progression

Craig Tested Pattern #130: Less Or More Visible Offer Pages On Kay.com

Pattern #130: Less Or More Visible Offer Pages - Variant A
Pattern #130: Less Or More Visible Offer Pages - Variant B

A global flyout drawer was added that consolidated sale promotions into one centralized location, replacing the customary placement of promotions throughout the site.

Total Sample: 2,206,246 • Statistical Power at 5% MDE: 99.8%

Test #637 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Feb 26, 2026 Mobile Listing X.X% Progression

Andrey Tested Pattern #137: Visible Filters On Online.metro-cc.ru

Pattern #137: Visible Filters - Variant A
Pattern #137: Visible Filters - Variant B

In this experiment, the sorting link (defaulting to popular) was swapped with the filter one. In the control, the sorting appeared on the left with the filter on the right, whereas in the variation these two were flipped. Impact on adds to cart and sales were measured.

Total Sample: 169,951 • Statistical Power at 5% MDE: 14.5%

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% Progression

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 #631 by Frazer MawsonFrazer Mawson Jan 29, 2026 Mobile Shopping Cart X.X% Progression

Frazer Tested Pattern #41: Sticky Call To Action

Pattern #41: Sticky Call To Action - Variant A
Pattern #41: Sticky Call To Action - Variant B

In this experiment, the shopping cart screen displayed a floating “Checkout” button with common credit card icons that directed users to the checkout page when clicked. In the control, the button was positioned inline, further down the page. Impact on progression to checkout and total sales were measured.

Total Sample: 80,003 • Statistical Power at 5% MDE: 99.9%

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

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 #627 by Jakub LinowskiJakub Linowski Dec 29, 2025 Product X.X% Progression

Jakub Tested Pattern #26: Cart Reminder And Recently Viewed

Pattern #26: Cart Reminder And Recently Viewed - Variant A
Pattern #26: Cart Reminder And Recently Viewed - Variant B

In this tightly triggered experiment, users who (1) did not complete a purchase and (2) visited a different product page saw a button in the top-right corner labeled “Don’t Forget Your Club.” Clicking this button resumed the checkout process at the point where they left off, without requiring the same information to be re-entered.

Total Sample: 2,131 • Statistical Power at 5% MDE: 14.3%

Test #626 on Jared.com by Craig KistlerCraig Kistler Dec 26, 2025 Desktop Mobile Listing X.X% Progression

Craig Tested Pattern #118: Category Images On Jared.com

Pattern #118: Category Images - Variant A
Pattern #118: Category Images - Variant B

In this experiment, two types of UI filters for metal color choices were shown at the top of product listing pages. One variant only used category labels, while the other variant combined images with labels to reinforce the categories. Impact on filter usage, adds to cart and sales were measured.

Total Sample: 34,191 • Statistical Power at 5% MDE: 7%

Test #625 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Dec 23, 2025 Desktop Mobile Listing X.X% Progression

Andrey Tested Pattern #90: Out Of Stock Or In Stock Products On Online.metro-cc.ru

Pattern #90: Out Of Stock Or In Stock Products - Variant A
Pattern #90: Out Of Stock Or In Stock Products - Variant B

In this experiment, search results and listing pages received two additional filters to remove out-of-stock and in-store-only items. This reduced the number of results shown by default. The impact on add-to-cart actions, checkout flows, and completed sales was measured.

Total Sample: 220,773 • Statistical Power at 5% MDE: 42.6%

Test #623 by Jakub LinowskiJakub Linowski Nov 29, 2025 Desktop Mobile Product X.X% Progression

Jakub Tested Pattern #139: Page Level Navigation

Pattern #139: Page Level Navigation - Variant A
Pattern #139: Page Level Navigation - Variant B

In this experiment, a single inline page navigation (going to external sub pages) was replaced with multiple and repeated inline page navigations (that linked within the same page). Impact on adds to cart an sales was measured.

Total Sample: 90,196 • Statistical Power at 5% MDE: 35.5%

Test #620 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Nov 24, 2025 Desktop Product X.X% Progression

Andrey Tested Pattern #42: Countdown Timer On Online.metro-cc.ru

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

In this experiment, 96 hours before the end of a promotion, a countdown timer was displayed on the desktop with a 80/20 split. Also excluded new users. Impact on sales was measured.

Total Sample: 170,153 • Statistical Power at 5% MDE: 71.2%

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

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%