All Latest 644 A/B Tests

MOST RECENT TESTS

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%

Which A Or B Actually Wins? Find Out Before You Test.

Members see every test result — the winners, the flat ones, and the losers — along with exact effects and sample sizes. Use it to estimate your tests and prioritize by probability, not gut feel. Start every experiment with the odds on your side.

Test #671 on Obsbygg.no by Joachim FurusethJoachim Furuseth Sep 28, 2026 Desktop Product X.X% Sales

Joachim Tested Pattern #93: Auto Next On Obsbygg.no

Pattern #93: Auto Next - Variant A
Pattern #93: Auto Next - Variant B

In this experiment, when users added something to cart, they would be automatically sent to checkout (one step forward), instead of staying on the product page. Impact on checkout visits and sales was measured. The test was triggered to PDP page visits.

This was a sibling experiment on another domain.

Total Sample: 251,205 • Statistical Power at 5% MDE: 69.1%

Test #670 on Kensingtontours.com by Dave VolmanDave Volman Sep 25, 2026 Desktop Signup X.X% Leads

Dave Tested Pattern #11: Gradual Reassurance

Pattern #11: Gradual Reassurance - Variant A
Pattern #11: Gradual Reassurance - Variant B

An additional step was added in a lead ffunnel with a question about the customer's desired "type of travel experience". Impact on lead rate was measured. (Desktop only)

Total Sample: 26,707 • Statistical Power at 5% MDE: 23%

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 #666 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Aug 14, 2026 Desktop Listing X.X% Sales

Andrey Tested Pattern #34: Open In A New Tab On Online.metro-cc.ru

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

This experiment ran on search results page of an ecommerce grocery store.

50% of users saw product cards that upon clicking would open in the same window (Control).

The other 50% saw product cards that upon clicking would open in a new tab/window (Treatment).

Impact on adds to cart and orders was measured.

We should also add that this experiment was run as part of the Trustworthy Replication Project and only "adds-to-cart" were pre-registered as the primary metric - https://osf.io/yu4gm/overview

Total Sample: 655,042 • Statistical Power at 5% MDE: 99.9%

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 #661 by Jakub LinowskiJakub Linowski Jul 08, 2026 Desktop Mobile Checkout X.X% Sales

Jakub Tested Pattern #98: Auto Suggest

Pattern #98: Auto Suggest - Variant A
Pattern #98: Auto Suggest - Variant B

In this experiment, instead of utilizing the browser auto-complete for the street address, the Google API call was made using the postal/zip code as the input. Once users would begin typing a street address, a pull-down with matching recommendations would appear. Impact on next step visits (to checkout) and sales were measured.

Total Sample: 9,611 • Statistical Power at 5% MDE: 77%

Test #660 on Obs.no by Joachim FurusethJoachim Furuseth Jul 07, 2026 Desktop Product X.X% Sales

Joachim Tested Pattern #93: Auto Next On Obs.no

Pattern #93: Auto Next - Variant A
Pattern #93: Auto Next - Variant B

In this experiment, when users added something to cart, they would be automatically sent to checkout (one step forward), instead of staying on the product page. Impact on checkout visits and sales was measured. The test was triggered to PDP page visits.

Total Sample: 93,949 • Statistical Power at 5% MDE: 40.9%

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 #657 on Obsbygg.no by Joachim FurusethJoachim Furuseth Jun 28, 2026 Desktop Mobile Product X.X% Sales

Joachim Tested Pattern #41: Sticky Call To Action On Obsbygg.no

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

In this experiment (sibling of 656), a sticky add-to-cart button was added to the floating page navigation after users scrolled past the midpoint of a long product page, at the same moment the navigation also became a floating element. After users clicked the button, it changed into a confirmation link labeled “Item added to cart,” with a link to checkout.

Total Sample: 1,238,014 • Statistical Power at 5% MDE: 98.8%

Test #656 on Obs.no by Joachim FurusethJoachim Furuseth Jun 27, 2026 Desktop Mobile Product X.X% Sales

Joachim Tested Pattern #41: Sticky Call To Action On Obs.no

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

In this experiment, a sticky add-to-cart button was added to the floating page navigation after users scrolled past the midpoint of a long product page, at the same moment the navigation also became a floating element. After users clicked the button, it changed into a confirmation link labeled “Item added to cart,” with a link to checkout.

Total Sample: 675,173 • Statistical Power at 5% MDE: 98.4%

Test #655 by Jakub LinowskiJakub Linowski Jun 22, 2026 Desktop Mobile Product X.X% Sales

Jakub Tested Pattern #113: More Or Fewer Plans

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

In this experiment, an additional ongoing club was tested in a floating buy box on top of 4 other subscription durations. Impact on adds to cart and sales was measured.

Total Sample: 9,548 • Statistical Power at 5% MDE: 9.1%

Test #654 by Jakub LinowskiJakub Linowski Jun 18, 2026 Desktop Mobile Product X.X% Sales

Jakub Tested Pattern #11: Gradual Reassurance

Pattern #11: Gradual Reassurance - Variant A
Pattern #11: Gradual Reassurance - Variant B

In this experiment, product configuration options were moved from a floating buy box on the right, to wards the center of the product page - increasing their prominence. Impact on adds to cart and sales was measured.

Total Sample: 8,379 • Statistical Power at 5% MDE: 15%

Test #652 on Kay.com by Craig KistlerCraig Kistler May 29, 2026 Desktop Mobile Home & Landing X.X% Sales

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 homepage users were shown their recently viewed items in a carousel (in the upper part of the homepage). Users who viewed at least 1 product were triggered into the experiment. Impact on adds to cart and sales was measured.

Total Sample: 561,787 • Statistical Power at 5% MDE: 44.5%

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

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%

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% Sales

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

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%