Building your first website demo for a local business? Spend 25 minutes checking whether a customer can use it before you show it to the owner. Build context Marc’s website-service Reel: https://www.instagram.com/reel/DeMyPS0BS5X/ Use it as the build idea; today’s exercise adds a small QA handoff. The link is a reference, not an attached video. Your assignment Use your own demo, an owner-authorized sandbox, or a fictional paper example. Use tools you already have. Keep customer data, credentials, payments, real enquiries, and real email delivery out of this exercise. First 5 minutes — define the customer task Write one task and its expected result. Example: “A prospective cleaning customer can read the service area and reach the approved contact control.” Next 10 minutes — check two widths Inspect the same demo at 390px and 1280px. Label these as emulated viewport widths; they are not physical-device tests. Readability: Can you read the service and area without horizontal scrolling? Contact: Can you reach the contact control with the keyboard, and does its destination match the owner-approved test destination? Form: Are labels clear, and do missing required fields produce understandable validation in an isolated sandbox? If you cannot isolate submissions, STOP before Submit. Mark delivery NOT TESTED. A screenshot does not prove delivery, accessibility, conversion, or revenue. Last 10 minutes — record, correct, recheck Record one actual defect or “no defect observed in these checks.” Fix only your sandbox if you can, then repeat the same checks. If you only propose a fix, mark it NOT RETESTED. Worked example — fictional An office-cleaning demo’s contact button sits behind a sticky footer at 390px but is visible at 1280px. Expected: reachable at both widths. Fictional observation: FAIL at 390px; PASS at 1280px. Proposed fix: reserve space for the footer. Retest: PENDING until someone actually checks it. Delivery and sales: UNVERIFIED.