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Test #674 on Online.metro-cc.ru by Andrey AndreevAndrey Andreev Oct 25, 2026 Desktop Listing X.X% Sales

Andrey Tested Pattern #107: Contrast Links & Buttons On Online.metro-cc.ru

Pattern #107: Contrast Links & Buttons - Variant A
Pattern #107: Contrast Links & Buttons - Variant B

In this experiment, the favorite icons (hearts) were: 1) highlighted more prominently using a darker border color, and 2) when users hovered over them with a mouse, the heart icon filled with a red color. Impact on favorite clicks, adds to cart and sales was measured.

Total Sample: 3,864,340 • Statistical Power at 5% MDE: 99.7%

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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 #667 on Obsbygg.no by Joachim FurusethJoachim Furuseth Aug 15, 2026 Mobile 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: 921,493 • Statistical Power at 5% MDE: 96%

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 #659 on Obs.no by Joachim FurusethJoachim Furuseth Jul 06, 2026 Mobile 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: 554,138 • Statistical Power at 5% MDE: 96.8%

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

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% Sales

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 #640 on Obs.no by Joachim FurusethJoachim Furuseth Mar 24, 2026 Desktop Checkout X.X% Sales

Joachim Tested Pattern #1: Remove Coupon Fields On Obs.no

Pattern #1: Remove Coupon Fields - Variant A
Pattern #1: Remove Coupon Fields - Variant B

The control had a clickable link "Use discount code" which would reveal an input field for a coupon code. The variation removed this link and input field. Impact on purchases was measured. (Desktop only)

Total Sample: 41,152 • Statistical Power at 5% MDE: 99.9%

Test #639 on Obs.no by Joachim FurusethJoachim Furuseth Mar 23, 2026 Mobile Checkout X.X% Sales

Joachim Tested Pattern #1: Remove Coupon Fields On Obs.no

Pattern #1: Remove Coupon Fields - Variant A
Pattern #1: Remove Coupon Fields - Variant B

The control had a clickable link "Use discount code" which would reveal an input field for a coupon code. The variation removed this link and input field. Impact on purchases was measured. (Mobile only)

Total Sample: 187,529 • Statistical Power at 5% MDE: 99.9%

Test #638 by Frazer MawsonFrazer Mawson Feb 28, 2026 Mobile Product X.X% Sales

Frazer Tested Pattern #41: Sticky Call To Action

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

A floating Add to Basket button was added to a product page. Impact on sales was measured.

Total Sample: 805,623 • Statistical Power at 5% MDE: 94.4%

Test #634 on Obsbygg.no by Joachim FurusethJoachim Furuseth Feb 18, 2026 Mobile Checkout X.X% Sales

Joachim Tested Pattern #1: Remove Coupon Fields On Obsbygg.no

Pattern #1: Remove Coupon Fields - Variant A
Pattern #1: Remove Coupon Fields - Variant B

The control had a clickable link "Use discount code" which would reveal an input field for a coupon code. The variation removed this link and input field. Impact on purchases was measured. (Mobile only)

Total Sample: 66,551 • Statistical Power at 5% MDE: 99.9%

Test #635 on Obsbygg.no by Joachim FurusethJoachim Furuseth Feb 18, 2026 Desktop Checkout X.X% Sales

Joachim Tested Pattern #1: Remove Coupon Fields On Obsbygg.no

Pattern #1: Remove Coupon Fields - Variant A
Pattern #1: Remove Coupon Fields - Variant B

The control had a clickable link "Use discount code" which would reveal an input field for a coupon code. The variation removed this link and input field. Impact on purchases was measured. (Desktop only)

Total Sample: 27,380 • Statistical Power at 5% MDE: 96.5%

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%