Launching tomorrow: a free scan that tells a Shopify store what it is losing

I run Shoptimal alone from Raleigh. Tomorrow I am launching the scan: paste a Shopify store, get one score out of 100 and every leak ranked by what it is probably costing per month. We ran it over 1,520 stores this October. 41% send Google a blank meta description. 55% keep sold-out products published.

Before tomorrow, one question for anyone who runs or builds for a store: what is the one thing you would want a scan like this to tell you that nothing tells you today? I will build the best answer.