What exact signals should I show a client to prove progress?

In a walkthrough, point to observable changes like updates to the public Digital Twin, any new or expanded Q&A, added images or service context, and shifts seen in the visibility reports that matter to the client. These are real, visible elements you can reference without claiming results. Measure progress by defining a baseline and then tracking the same evidence over time. Look for improvements in coverage of key customer questions, consistency of the approved facts, and how the outputs are structured. As with the guidance here, record a baseline, implement changes, then repeat the checks and report what improved—without promising rankings or citations. Remember that discovery, retrieval and referrals are separate signals. Use multiple data points over time to draw knowledge, not sales conclusions, since one signal on its own does not prove client interest.