An 'Ad Click' occurs when a user actively clicks on an advertisement. This interaction is a key metric in digital advertising as it indicates user engagement and interest in the ad content.

Ad clicks are essential for understanding the effectiveness of ad creative and placement. They are often used in conjunction with other metrics like click-through rate (CTR) and conversion rate to assess the overall performance of an advertising campaign.

Measuring ad clicks allows advertisers to understand which ads are resonating with audiences. A high number of clicks suggests strong audience engagement, while low clicks may indicate a need for ad optimization or targeting adjustments.