Choose the evidence before the project starts, then measure more than surface conversion rate.
Define the business behavior the site should change, record a reliable baseline, track leading and lagging indicators, and separate site effects from major changes in traffic, offers, or sales operations.
Begin with one business behavior
A redesign can improve many things, but one primary behavior keeps scope and measurement honest. That might be consultation quality, trial activation, booking completion, or publishing speed.
Track the cost of friction
Internal time matters. Measure hours spent updating content, routing weak leads, correcting errors, and explaining information the site should make clear.
Read the result in context
Traffic mix, seasonality, promotions, and sales capacity can move outcomes. Keep a short change log so the site does not receive credit or blame for everything.
Questions that follow.
Use an early stability window, then compare a period long enough to account for sales cycle and seasonality. Many teams review at 30, 90, and 180 days.
Check tracking first, then compare traffic quality, device mix, key flows, and message changes. A drop is a signal to investigate, not proof of one cause.
Use a mix of direct traffic, branded search, recall research, sales feedback, and message comprehension rather than one proxy.







