Testing the path, not the page
A promise that wins the add-to-cart has to survive the checkout, and that is where most copy tests quietly cost money.
- One story, several pages
- A variation can span every page on the path to the order, so the argument stays consistent from listing to confirmation instead of changing under the shopper.
- Aim near, protect far
- Point the experiment at add-to-cart for faster signal, and name completed orders as the goal that must not suffer. A variation that lifts carts while costing you sales is blocked rather than shipped.
- After it ships
- A slice of traffic keeps seeing the old copy, so a win that reverses once the novelty passes gets caught.