All Latest 650 A/B Tests

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%

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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%

Test #614 on Kay.com by Craig KistlerCraig Kistler Oct 23, 2025 Mobile Home & Landing X.X% Progression

Craig Tested Pattern #26: Cart Reminder And Recently Viewed On Kay.com

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

In this experiment, returning users to a homepage would be shown recently viewed items. Impact on adds to cart and sales was measured. The experiment was triggered to returning users.

Total Sample: 122,483 • Statistical Power at 5% MDE: 58.1%

Test #612 by Frazer MawsonFrazer Mawson Sep 28, 2025 Mobile Checkout X.X% Progression

Frazer Tested Pattern #99: Progress Bar

Pattern #99: Progress Bar - Variant A
Pattern #99: Progress Bar - Variant B

In this experiment, a 3 step progress bar was added at the top of an ecommerce checkout funnel. Impact on checkout progression and completed sales was measured.

Total Sample: 43,113 • Statistical Power at 5% MDE: 99.2%

Test #611 on Finn.com by Maksim Meged Maksim Meged Sep 24, 2025 Desktop Mobile Listing X.X% Progression

Maksim Tested Pattern #114: Less Or More Visible Prices On Finn.com

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

In this experiment, price was made more visible using size and a higher contrast color. Impact on progressions and bookings was measured.

Total Sample: 55,293 • Statistical Power at 5% MDE: 5.3%

Test #610 by Jakub LinowskiJakub Linowski Sep 04, 2025 Desktop Product X.X% Progression

Jakub Tested Pattern #111: Field Explanations

Pattern #111: Field Explanations - Variant A
Pattern #111: Field Explanations - Variant B

In this product detail page experiment, the variation showed a tooltip icon. Upon hovering on the icon it expanded additional information explaining the difference between pay in full and pay per shipment. Impact on sales was measured. 

Total Sample: 26,534 • Statistical Power at 5% MDE: 15.7%

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

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 #608 by Frazer MawsonFrazer Mawson Aug 28, 2025 Mobile Signup X.X% Progression

Frazer Tested Pattern #99: Progress Bar

Pattern #99: Progress Bar - Variant A
Pattern #99: Progress Bar - Variant B

In this experiment, a 3 step progress bar was added at the top of a signup funnel. Impact on signups was measured.

Total Sample: 64,980 • Statistical Power at 5% MDE: 25.9%

Test #607 on Backstage.com by Stanley ZuoStanley Zuo Aug 26, 2025 Mobile Listing X.X% Progression

Stanley Tested Pattern #51: Shortcut Buttons On Backstage.com

Pattern #51: Shortcut Buttons - Variant A
Pattern #51: Shortcut Buttons - Variant B

In this experiment, additional "apply" buttons were shown on listing tiles which lead users one step further in the application process. These buttons were also shown with multiple role details. Impact on progression and job application starts was measured.

Total Sample: 43,967 • Statistical Power at 5% MDE: 7.1%

Test #606 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Aug 22, 2025 Mobile Product X.X% Progression

Andrey Tested Pattern #4: Testimonials On Online.metro-cc.ru

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

In this experiment, the presence of customer reviews were A/B tested on product pages of an online grocery store. Impact on adds to cart and sales was measured. (The expert was ran as a reverse/removal, but was inverted here to match the pattern).

Total Sample: 1,317,945 • Statistical Power at 5% MDE: 79.3%

Test #605 by Jakub LinowskiJakub Linowski Aug 21, 2025 Desktop Mobile Product X.X% Progression

Jakub Tested Pattern #113: More Or Fewer Plans

Pattern #113: More Or Fewer Plans - Variant A
Pattern #113: More Or Fewer Plans - Variant B

A less expensive product choice (club duration) was added at the beginning of the options. Impact on adds-to-cart, sales and revenue were measured.

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

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% Progression

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% Progression

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 #598 by Jakub LinowskiJakub Linowski Jun 27, 2025 Desktop Mobile 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

This experiment started when a user started a custom product build and visited any other product page. In the variation, a resume button appeared that would bring the customers back to their custom build. Impact on checkouts and sales was measured.

Total Sample: 1,177 • Statistical Power at 5% MDE: 7.7%

Test #599 on Finn.com by Tim KarcherTim Karcher Jun 27, 2025 Mobile Product X.X% Progression

Tim Tested Pattern #10: Postponed Modal Forms On Finn.com

Pattern #10: Postponed Modal Forms - Variant A
Pattern #10: Postponed Modal Forms - Variant B

This is a heavily confounded multi-change experiment. In the variation, product choices on product detail pages were taken off and moved to a 2nd step (a new step). This also resulted in the price and primary button becoming more visible from an upward position shift. Impact on adds-to-cart and lead generation was measured.

Total Sample: 23,733 • Statistical Power at 5% MDE: 9.9%

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

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%