AdSense revenue can drop due to low CPMs, decreased click-through rates, or ad placement issues.

Decreasing AdSense revenue can be frustrating, and the cause could range from ad placement to click-through rates (CTR) and cost per thousand impressions (CPMs). Review your ad placements to ensure they’re in high-visibility spots but not intrusive to user experience. Low CTRs can occur if ads are irrelevant to your audience, so optimizing your content categories can lead to more targeted ads. Lower CPMs might be due to market trends, but joining other ad networks or using mediation services can provide additional revenue sources. Monitoring your AdSense reports closely allows you to make targeted adjustments that improve revenue.