Which of the following is NOT a best practice for measuring interest in products or services via earned media?

The correct choice indicates a method that is not considered a best practice for measuring interest in products or services through earned media. Measuring interest typically focuses on evaluating external perceptions and engagement rather than solely internal metrics.

Tracking impressions on social media, analyzing customer feedback, and monitoring competitor activities provide insights into how the audience interacts with the brand and its products in a broader context. These methods allow marketers to gauge overall sentiment and engagement levels within the marketplace, which are crucial for understanding earned media effectiveness.

On the other hand, while tracking data on your own website using Google Analytics is essential for assessing online performance, it mainly reflects direct consumer behavior on that specific platform. This method does not directly measure how earned media affects external interest or brand perception; rather, it assesses the outcomes of marketing efforts already made. Hence, it falls outside the typical scope of earned media evaluation.