Estimate the lift needed to justify a landing page redesign
Set an economic target before committing to a rebuild.
Calculate how many extra outcomes you need
A $2,400 redesign and $60 contribution per incremental sale require 40 extra sales over the chosen review period. With 20,000 eligible visits, that is a 0.2 percentage point lift before other changes.
Include recurring costs and timing
If the redesign adds $300 in operating costs during the period, the threshold rises to 45 sales. Consider how long the improvement is expected to last and whether conversion takes time to mature.
Choose a test appropriate to the investment
Use a controlled comparison where feasible. If traffic cannot resolve a small lift, test a smaller change against a specific usability problem before replacing the entire page.
Try a related tool
Find the share of eligible visits that completed a defined action. Count at most one conversion per visit for this calculation.
