12 checks to run before you launch

Write down the displayed price from homepage, pricing, checkout, FAQ and Terms. They should describe the same commercial reality.
Click the hero CTA in a fresh browser. Does the destination match the label?
Search live pages for TODO, FIXME, lorem, localhost, example.com, [COMPANY] and [COUNTRY].
Confirm “free,” “trial,” and “no card required” claims against the actual flow.
Verify one-time vs recurring billing language at every buyer-facing surface.
Open the published support/contact route and confirm it belongs to the intended business.
Run one new-user signup or auth-start path from the same entry point a buyer uses.
Verify checkout shows the intended product name, price and billing interval.
Check the post-purchase/access state: what exactly happens after successful payment?
Try one invalid form input and one cancel/back path. Can the buyer recover?
Run the primary flow at phone width and make sure overlays do not hide the CTA.
Before filing any issue, ask whether an intentional discount/experiment could explain it; if uncertain, report a mismatch to confirm rather than an accusation.