Check 3 / 12 MED impact In the full checklist
Flat rate $4.99 under threshold, no surprises
What this check is
A single, honest flat rate below the threshold is easier to trust than a matrix of carrier prices that changes with weight. It also protects the margin because you set the number.
How to implement it
Configure one flat domestic rate under the threshold and a realistic international rate per zone, state both on the shipping page and the product page, and make sure the rate in the cart matches before the shopper reaches the payment step.
How to verify it
Check out one light and one heavy product to the same country and confirm both are charged the flat rate stated on the shipping page, with no weight-based surprise.
All 197 checks, one Google Sheet
This page is the summary. The full checklist carries the priority, the impact score and the tool link for every check — all 197 of them, across 14 categories, as a Google Sheet and CSV with lifetime updates.
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