Yes, but only if the measurement relies on a baseline. One generated answer is not enough to conclude that drift exists.
The right method begins by defining what the organisation should be able to make understandable: identity, category, offer, audiences, proof and limits. Several systems are then queried with comparable prompts, and the gaps are observed.
The important question is not only whether AI mentions the organisation. It is whether it describes it in the right category, with the right differentiators, the right proof and coherent recommendability.
Once the gap is confirmed, Pagup can determine whether it comes from missing content, brand ambiguity, old remanence, category drift or a deeper governance problem.